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DSC 600

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INTRODUCTION

  • The DSC 600 from Advanced Measurement Instruments (AMI) is the next generation of Differential Scanning Calorimeters (DSC), crafted to meet the evolving needs of professionals in materials research, chemical engineering, quality control, petrochemicals, and pharmaceuticals. Designed for precision, reliability, and affordability, the DSC 600 sets new standards in thermal analysis.
  • At the heart of the DSC 600 is its innovative heat flux plate, engineered to capture the smallest energy changes with unmatched sensitivity and accuracy. This powerful capability enables precise measurements across a broad spectrum of applications, including enthalpy, glass transition, heat of crystallization, purity determination, and heat capacity.
  • Equipped with an ultra-light furnace, the DSC 600 ensures excellent thermal conductivity and stability, delivering consistent performance across a wide temperature range. With a selection of specialized heat flux plates, it can be tailored to meet diverse testing needs,enhancing efficiency and flexibility in every lab.
  • Typical Applications
  • Melting Temperature
  • Crystallization Temperature
  • Heat of Chemical Reaction
  • Glass Transition Temperature
  • Specific Heat Capacity
  • Degree of Crystallinity
  • Degree of Cure
  • Oxidative Stability
  • Thermal Stability
  • Solid-State Phase Transition
  • Liquid Crystal Phase Transition
  • Aging of Materials
  • Polymorph

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  • DSC 600

FEATURES

  • Precision
  • High-sensitivity heat flow sensor platform delivers calorimetric accuracy of ±0.1%. With four distinct heat flow sensor types available, it comprehensively meets the precise measurement needs of diverse materials, accommodating a wide range of experimental and application scenarios.
  • Featuring innovative furnace technology and unique sensor design, the system achieves exceptional baseline repeatability while offering low noise, high sensitivity, and outstanding resolution. This ensures the detection of even minute thermal changes that might otherwise be lost in noise.
  • Stability
  • The mineral-insulated furnace body design combines excellent thermal conductivity with corrosion resistance, while dual-PID temperature control ensures data accuracy and stability.
  • Advanced circumferential heating technology and a proprietary dual-PID control system guarantee precise adherence to programmed temperature profiles during both heating and cooling phases. With temperature control accuracy of ±0.01°C, the system significantly minimizes thermal fluctuations that could compromise experimental results.
  • Ease of Use
  • The intuitive software interface features streamlined UI and modular architecture, enabling effortless operation. Researchers can quickly master experimental setup, data analysis, and all critical workflows.
  • The maintenance optimized furnace design allows easy cleaning even after sample contamination during loading, significantly enhancing experimental efficiency while extending equipment service life.
  • High-Precision Heat Flow Sensor
  • The self-developed high-sensitivity heat flow sensor platform delivers low noise, high sensitivity, and exceptional resolution to reliably detect minute thermal variations that might otherwise be obscured by noise.
  • Four Types of Heat Flow Sensors
  • The DSC600 offers four types of heat flow sensor platforms: standard testing type, high-sensitivity type (for biopharmaceutical materials), corrosion-resistant type (for corrosive samples), and energetic materials type (for chemical reactions). These sensors meet the requirements of different application scenarios and sample types.
  • Precision Temperature Control
  • The system utilizes circumferential heating technology and a proprietary dual-PID control system to ensure exact adherence to programmed temperature curves during heating/cooling processes. With a temperature control accuracy of ±0.01°C, it effectively minimizes thermal fluctuations that could compromise experimental results.
  • Ultralight Mineral Furnace
  • The silver-constructed furnace body delivers exceptional thermal conductivity and stability, ensuring precise temperature control and rapid thermal response. The pure silver material effectively minimizes heat loss while enhancing analytical efficiency, achieving uniform heating/cooling across samples. Its superior corrosion resistance extends instrument service life, accommodating diverse experimental environments.
  • Automatic Gas Switching Control
  • The multi-channel gas inlet device enables automatic gas switching during experiments. This integrated unit combines four or six gas lines into a single module to meet the demands of frequent gas changes across different testing procedures.
  • Gas Preheating Function
  • The furnace incorporates heated gas lines at the inlet ports, enabling gas preheating before entering the sample chamber. This design stabilizes experimental conditions and enhances testing efficiency.
  • Three High-Efficiency Cooling Systems
  • The DSC 600 is equipped with three high-efficiency cooling systems, offering versatile refrigeration options: water bath cooling, mechanical refrigeration, and liquid nitrogen cooling.
  • The water bath cooling system regulates furnace temperatures from 10°C to 600°C, ideal for scenarios not requiring cryogenic conditions, such as polymer melting point and crystallization temperature analysis. The mechanical refrigeration system covers a temperature range of -90°C to 450°C, widely used in polymer material analysis, including glass transition studies, crystallization kinetics research, and conventional low-temperature testing applications.
  • The liquid nitrogen cooling system utilizes the endothermic properties of evaporating liquid nitrogen for rapid cooling, with a furnace temperature range of -150°C to 600°C. It is primarily employed for ultra-low temperature research, such as metal alloy phase transitions, superconducting material analysis, and rapid quenching experiments, including amorphous material preparation and fast cooling process studies.

SOFTWARE

  • Experiment Program Setup Interface
  • Standard Functions
  • · Glass transition analysis
    (2-point or 6-point method)
  • · Onset/peak temperature determination
  • · Peak integration
  • · Melting peak analysis
  • · Crystallinity measurement
  • · Data smoothing
  • · Baseline correction
  • Optional Functions
  • Specific Heat Capacity:
    The system rapidly determines specific heat values by testing samples alongside reference materials with known heat capacity (e.g., sapphire) under identical conditions.

SPECIFICATIONS

Temperature Range -150~600°C
Temperature Accuracy ±0.1°C
Temperature Precision ±0.01°C
Program Rate 0.1~200°C/min
Cooling Mode Water Cooling Refrigerated Cooling Liquid Nitrogen Cooling
Maximum Temperature 600°C 450°C 600°C
Minimum Temperature Ambient Temperature -40°C or -90°C -150°C
Calorimetric Accuracy ±0.1%
Noise 0.5 μw
Gas Nitrogen, Argon, Helium, Compressed air, Oxygen, etc.
Sampling Frequency 10 Hz
Weight 27 lbs.
Dimensions 17 in(W) × 17 in(D) × 9.5 in(H)
  Options
Gas Controller 4 Channel Automatic Gas Switching
Software Functions Specific Heat Capacity

MATERIALS

  • Thermoplastics
  • Thermosets
  • Rubbers
  • Catalysts
  • Phenolics
  • Pharmaceuticals
  • Chemicals
  • Coals and other fuels
  • Nuclear Research
  • Foods
  • Cosmetics
  • Explosives

APPLICATIONS

  • Cold Crystallization Behavior of PET
  • The crystal growth and degree of crystallization depend on the polymer type, cooling rate, or isothermal aging time. The calculation method for crystallization enthalpy is the same as that for melting enthalpy. Cold crystallization is the process of crystal growth during heating. This exothermic event precedes crystal melting.
  • Glass Transition Analysis
  • The glass transition temperature (Tg) of polymers refers to the temperature range at which they transition from a rigid "glassy" state to a flexible "rubbery" state, significantly affecting their usability, particularly in elastomers. Understanding Tg is crucial for quality control, process optimization, ensuring product performance, and maintaining material consistency.
  • Phase Transformation of Nickel-Titanium Alloys
  • The Af temperature refers to the phase transition temperature of nickel-titanium alloys, marking the transformation from the high-temperature phase (a-phase) to the low-temperature phase (f-phase). In the high-temperature phase, the crystal structure of nickel-titanium alloy exhibits a cubic system, while in the lowtemperature phase it transforms into a monoclinic system. This phase transition temperature change gives nickel-titanium alloys their shape memory properties. These shape memory characteristics enable important applications across various fields, such as medical devices, aerospace, and mechanical engineering.

ACCESSORIES

  • Crucibles
  • Crucibles serve as sample containers in thermal analysis measurements, effectively protecting sensors and preventing measurement contamination. The selection of crucible type is critical for result quality. We offer various crucible options to meet different testing requirements, ensuring accurate and reliable measurement results.
  • Pellet Press
  • The crucible pellet press elevates sample encapsulation to higher performance and convenience, suitable for routine and hermetic testing of various materials. The standard model is specifically designed for solid sample crucibles, while the universal model handles both solid and liquid sample crucibles, offering greater flexibility for your experiments.
  • Fully Automated Chiller
  • The fully automated recirculating bath enables precise continuous temperature control within the range of -10°C to 90°C. When coupled with the water-cooled DSC 600 system, it achieves rapid furnace cooling, significantly enhancing experimental efficiency.
  • Gas Selector Accessory
  • The gas selector supports one-button switching across multiple gases, accommodating up to 4 input ports. It simplifies valve disassembly and assembly when sampling different gases, effectively minimizing leakage risks associated with manual handling. Additionally, the instrument features an automatic purging process, ensuring efficient gas line purification and seamless, automated switching between gases.

PDSC

  • Pressure Differential Scanning Calorimeter
  • The Pressure Differential Scanning Calorimeter (PDSC) is capable of conducting calorimetric tests under both high and low-pressure conditions. In practical applications, many raw materials and finished products are processed or used under high temperature and high pressure, making it essential to understand their performance under these extreme conditions. While traditional calorime-ters are effective in characterizing the physical and chemical properties of materials, the PDSC extends this characterization to extreme pressure environments. It allows for an in-depth analysis of the heat flow changes during phase transitions and chemical reactions under high or low pressure.
  • In a sealed crucible, changes in internal pressure can cause DSC test results to differ from those obtained under atmospheric pressure. The PDSC enables precise pressure control, which allows researchers to investigate the effects of varying pressures on samples and uncover thermal behavior differences in different environments. For material research in extreme test conditions, the PDSC offers superior capabilities in characterizing heat changes during reaction processes.
  • At the core of the PDSC is a high-performance heat flow sensor platform, specifically designed to study minute energy changes and the relationship between energy, temperature, and pressure.
  • Temperature Range -150-600°C
    Maximum Pressure 1000 psi
    Program Rate 0.1-200°C/min
    Gas Nitrogen, Argon, Helium, Compressed air, Oxygen, etc.

AMI Thermal Analysis Series Products

  • Differential Scanning
    Calorimeter
    (DSC)
  • Thermogravimetric
    Analyzer
    (TGA)
  • Simultaneous Thermal
    Analyzer
    (STA)
  • Thermomechanical
    Analyzer
    (TMA)

 

TGA 1000/1200/1500

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INTRODUCTION

  • The TGA Series combines research-grade capabilities with an accessible price point, delivering high-performance thermal analysis tools without compromising on quality. Equipped with advanced high-sensitivity microbalances and compact, state-of-the-art furnaces, these instruments provide unparalleled precision, drastically reduce buoyancy effects, and ensure superior temperature responsiveness.
  • Renowned for their reliability and versatility, the TGA Series instruments are trusted across a wide range of industries, including plastics, rubber, adhesives, fibers, pharmaceuticals,environmental energy, petrochemicals, and food science. These instruments meet critical customer needs by enabling the characterization and analysis of parameters such as material decomposition temperatures, mass loss percentages, component contents, and residual mass.

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  • TGA 1000/1200/1500

FEATURES

  • Proprietary Microbalance
  • The proprietary TGA microbalance combines high sensitivity, low drift technology, and thermal insulation design to deliver exceptional weighing accuracy. With a resolution as precise as 0.1 μg, it is ideal for high-precision measurements of trace samples. The low-drift technology minimizes the impact of environmental factors, ensuring stable data even in long-duration experiments, while reducing errors caused by drift. Additionally, the thermal insulation design protects the balance from external temperature fluctuations, maintaining internal temperature stability and ensuring reliable results, even in conditions of rapid temperature change or high heat.
  • Miniature Furnace
  • The compact heating furnace is designed to significantly minimize gas buoyancy effects, ensuring that dynamic curve drift in TGA remains under 25 μg without requiring additional blank tests. Additionally, the furnace delivers a rapid temperature response, achieving heating rates of up to 300°C/min, which dramatically shortens experimental time and enhances overall work efficiency.
  • Precise Temperature Control
  • The advanced heating technology combined with a dual PID control system ensures precise adherence to the set temperature curve during both heating and cooling processes. With a temperature control accuracy of ±0.1°C, this system significantly reduces the influence of temperature fluctuations, delivering highly reliable experimental results.
  • Wide Temperature Range
  • Multiple furnace options are available to meet the specific temperature requirements of different materials. With a maximum temperature capability of up to 1500°C, these furnaces are designed to satisfy the rigorous demands of both experimental and industrial applications.
  • Furnace Auto-Lift System
  • The instrument is equipped with an automatic furnace lifting system, simplifying experimental operations and preventing equipment damage or safety incidents caused by improper manual handling.
  • Water Cooling System
  • The fully automated recirculating bath provides precise and continuous temperature control, which effectively and rapidly reduces the TGA furnace temperature, significantly shortening the experimental time.
  • Automatic Gas Switching Control
  • The gas selector supports one-button switching across multiple gases, accommodating up to 4 input ports. The device features an integrated design, consolidating four gas channels into a single module to meet the need for frequent gas switching during different testing processes.
  • Evolved Gas Analysis
  • TGA can be combined with other analytical instruments for online monitoring and qualitative analysis of evolved gases, such as mass spectrometers (MS) or Fourier-transform infrared spectrometers (FTIR).

SOFTWARE

  • Experiment Program Setup Interface
  • Standard Functions
  • · 2-point or 6-point mass loss analysis
  • · Peak temperature analysis
  • · Weight loss step analysis
  • · Mass loss initiation point
  • · Residual mass calculation
  • · 1st and 2nd derivative analysis
  • · Data smoothing
  • ·Baseline subtraction
  • Optional Functions
  • High-Resolution thermogravimetric analysis:
    Enables effective separation of overlapping mass loss regions, improving resolution, and quickly obtaining experimental data over a wide tempera-ture range.

MATERIALS

  • Petrochemical products
  • Coal and other fuels
  • Explosives
  • Cosmetics
  • Thermoplastic materials
  • Thermosetting materials
  • Rubber
  • Coatings
  • Elastomers
  • Polymers
  • Pharmaceuticals
  • Food Products
  • Catalysts
  • Chemicals
  • Asphalt
  • Ceramics

SPECIFICATIONS

Temperature Range RT-1000°C RT-1200°C RT-1500°C
Temperature Accuracy ±0.5°C
Temperature Precision ±0.1°C
Program Rate 0.1-300°C/min 0.1~60°C/min
Cooling Mode Water Cooling
Resolution 0.1 μg
Measuring Range ±200 mg
Dynamic Baseline Drift ≤ 25 μg (No blank background subtraction)
Isothermal Baseline Drift ≤5 μg/h
Repeatability ≤10 μg
Weight 44 lbs.
Dimensions 16.3 in(W) × 14 in(D) × 16.6 in(H)
  Options
Gas Controller 4 Channel Automatic Gas Switching
Evolved Gas Analysis MS,FTIR,etc.

APPLICATIONS

  • Typical Applications
  • Thermal Stability
  • Thermal Pyrolysis
  • Oxidation Reactions
  • Dehydration Process
  • Decomposition
  • Process Kinetics
  • Combustion Process
  • Moisture Content
  • Residue and Ash Content
  • Dynamic Baseline Drift
  • In a typical TGA test, the sample mass may increase due to the "buoyancy effect" of the gas. However, the design of the miniature heating furnace ensures that the drift of the dynamic thermogravimetric curve remains below 25 μg, eliminating the need for baseline curve subtraction.
  • Weight Loss Step Analysis
  • The analysis software enables clear observation of the weight loss ratio and corresponding temperatures at each stage of the process. For instance, the thermogravimetric curve of hydrated calcium oxalate demonstrates three distinct stages. In the first stage, bound water evaporates, producing water vapor and leaving behind calcium oxalate. In the second stage, calcium oxalate decomposes into calcium carbonate and carbon monoxide. Finally, in the third stage, calcium carbonate further breaks down into calcium oxide and carbon dioxide.
  • High-Resolution TGA
  • The high-resolution TGA technology intelligently adjusts the heating rate in response to the sample's decomposition rate,effectively separating overlapping mass loss regions and enhancing resolution. This enables the rapid collection of experimental data across a wide temperature range. The exceptional resolution achieved with this advanced technology is particularly beneficial for analyzing the mass loss curve in TGA and the first derivative signals (DTG), providing highly detailed and accurate results.

ACCESSORIES

  • Crucibles
  • Crucibles serve as sample containers in thermal analysis measurements, effectively protecting sensors and preventing measurement contamination. The selection of crucible type is critical for result quality. We offer various crucible options to meet different testing requirements, ensuring accurate and reliable measurement results.
  • Mass Spectrometer
  • The Online Gas Mass Spectrometer is a quadrupole mass spectrometer specifically designed for the efficient collection and analysis of TGA evolved gases, with a mass range of 1-300 amu. It offers sensitivity at the parts-per-billion (ppb) level, ensuring precise analysis of low-concentration gases.
  • Fully Automated Chiller
  • The fully automated recirculating bath enables precise continuous temperature control within the range of -10°C to 90°C. When coupled with the water-cooled DSC600 system, it achieves rapid furnace cooling, significantly enhancing experimental efficiency.
  • Gas Selector Accessory
  • The gas selector supports one-button switching across multiple gases, accommodating up to 4 input ports. It simplifies valve disassembly and assembly when sampling different gases, effectively minimizing leakage risks associated with manual handling. Additionally, the instrument features an automatic purging process, ensuring efficient gas line purification and seamless, automated switching between gases.

AMI Thermal Analysis Series Products

  • Differential Scanning Calorimeter(DSC)
  • The DSC is a device used to measure the energy changes absorbed or released by a sample during variations in time or temperature. The DSC sensor is a heat flow measurement platform employing specialized technology, designed to deliver exceptional performance and testing reliability. Examples of measurements conducted using DSC include enthalpy of melting, glass transition, crystallization, purity, and specific heat capacity.
  • Thermogravimetric Analyzer(TGA)
  • The TGA measures changes in the weight of a sample as a function of temperature or time. This product supports the editing of multiple program segments, allowing for the design of complex experiments involving heating, cooling,or isothermal conditions. It also features automatic gas switching during temperature ramps, while its vertical supension design ensures stable and accurate weight readings throughout the experiment. The TGA's micro-furnace provides rapid response to temperature changes and enables quick cooling between multiple experiments.
  • Simultaneous Thermal Analyzer(STA)
  • AMI introduces anew generation of high-performance STA, featuring a microbalance with 0.1 μg resolution, advanced control algorithms, and structural design. The STA is ideally suited for evolved gas analysis, capable of precisely capturing minute mass changes and thermal effects. It is also equipped with an atmosphere control system that provides specific gas environments, aiding in the simulation of real-world conditions. The STA is flexibly configurable to meet all your specific thermal analysis testing needs.
  • Thermomechanical Analyzer(TMA)
  • Thermal expansion is a primary cause of mechanical stress and electronic component failure. The TMA can accurately determine the glass transition temperature and stress relief points of materials, identify critical points that may lead to delamination, and ensure the stability of electronic performance. This new thermomechanical analyzer features a simple and robust design, specifically tailored for measuring the expansion of small components and the low expansion rates of circuit boards and component materials.

 

STA 650 1000 1200 1500

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INTRODUCTION

  • AMI is pleased to introduce its next-generation Simultaneous Thermal Analyzer (STA), a state-of-the-art instrument designed for advanced thermal analysis. Incorporating a 0.1-microgram balance resolution, sophisticated control algorithms, and an innovative hang-down design, this analyzer delivers exceptional precision and reliability in an affordable, high-performance system.
  • The STA Series enables simultaneous Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC)/Differential Thermal Analysis (DTA) on a single sample within a single run. Built for reliability and precision, the STA delivers comprehensive thermal profiles without the need to run multiple experiments—saving you both time and sample material.
  • Engineered for quality control, routine testing, academic research, and industrial R&D, the STA Series combines robust construction with user-friendly intuitive software, offering a cost-effective solution for high-precision thermal analysis.
  • The STA is controlled by the Infinity Pro Thermal Analysis software. This unique Windows based software offers a very simple interface with all the features you need to analyze your thermal data.

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  • STA Simultaneous Thermal Analyzer

MATERIALS

  • ● Polymers
  • ● Chemicals
  • ● Petrochemicals
  • ● Polymorphs
  • ● Superconductors
  • ● Ceramics
  • ● Glasses
  • ● Composites
  • ● Metals
  • ● Engineered alloys
  • ● Pharmaceuticals
  • ● Catalyst Research
  • ● Building Materials
  • ● Propellants
  • ● Explosives
  • ● Electronic Components
  • ● Coals & other fuels
  • ● Catalysts
  • ● Nuclear Science Materials
  • ● Food and Biomaterials

FEATURES

  • True Hang-Down Balance Design
  • Industry-leading stability, sensitivity, and long-term drift resistance for reliable and repeatable measurements without the need for buoyancy corrective experiments.
  • High Sensitivity Microbalance
  • Sub-microgram-level accuracy across a broad temperature range, providing confidence in your thermal and mass loss data.
  • 24-Bit Resolution
  • High-precision measurement of temperature, delta T, and weight with minimal noise and high digital fidelity.
  • Small Swept Volume Furnace Cup (7.5mL)
  • Enhances temperature uniformity and gas exchange efficiency.
  • Simultaneous TGA/DSC or DTA
  • Perform thermogravimetric and calorimetric analyses in a single run— ideal for decomposition, oxidation, and phase transitions.
  • Dual Purge Gas System
  • Separate channels for purge and protective gases allow for fine control of the experimental atmosphere.
  • Broad Temperature Range
  • Furnace operation up to 1500°C under inert, oxidizing, or reducing gas environments.
  • Motor-Driven Furnace Lift
  • Ensures automated, smooth movement of the furnace for consistent sample positioning.

OPTIONS

  • Evolved Gas Analysis (EGA) Compatibility
  • Interface with mass spectrometry (MS) or FTIR systems for evolved gas studies during thermal decomposition.
  • 4-Gas Selector System
  • Automates delivery of up to four different gases for programmable switching during analysis.
  • Sub-Ambient System (650°C Model)
  • Low-temperature furnace models support experiments starting below room temperature
  • High-Temperature Flexibility
  • Optional DSC-only high-temperature mode to allow DSC-only to 1,500°C
    Optional TGA-only high-capacity mode for larger or reactive samples

EXAMPLES

  • Barium Chloride
  • This is an example of a reference material that shows temperature and enthalpy accuracy. In addition, this represents a good example of a fused peak analysis.
  • Calcium Oxalate
  • Calcium Oxalate is an excellent demonstration material for both DSC and TGA. This sample was run in the presence of Oxygen. The first DSC peak has an associated weight loss and represents bound water.
  • STA data analysis

SPECIFICATIONS

  • Temperature -40°C-650°C Ambient to 1200°C Ambient to 1500°C
    Programmed Rate 0.1-100 °C/min 0.1-40 °C/min
    DSC Sensitivity <1 μW <4 μW
    TGA Range 400 mg
    TGA Readability 0.1 μg
    Thermocouple Type K Type R
    DSC/DTA mode Yes

TMA 800

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INTRODUCTION

  • The TMA 800 is built on a proven vertical design that incorporates an advanced Oil Float Suspension System, delivering the stability and precision required for accurate measurement of thermal expansion, glass transition, and other thermomechanical properties across a wide range of materials.
  • Engineered for both performance and ease of use, the TMA 800 provides exceptional data quality for analyzing coefficients of thermal expansion (CTE), stress relaxation, and dimensional change. It is ideally suited for high-reliability applications in electronics, composites, advanced polymers, and more. With a wide operating temperature range from -90 °C to 800 °C and multiple test modes available, the TTMA 800 offers outstanding versatility to meet a broad range of application needs.
  • Thermal expansion is a primary cause of mechanical stress and failure in electronic components, PCB assemblies, and multilayer structures. Accurately determining the glass transition temperature—the point at which softening and stress relief begin—or the onset of delamination is critical to product development, performance, and reliability in thermal environments.
  • The TMA 800 is a rugged, easy-to-use system designed for both routine testing and advanced research. It features a motorized furnace lift for smooth, safe repositioning after loading, with integrated position sensors to ensure operator protection. Its all-metal furnace is built to deliver thousands of hours of failure- free performance, while its vertical geometry supports samples ranging from a few microns to over a centimeter tall—ideal for measuring both small components and low-expansion materials such as circuit boards.
  • Whether you're characterizing high-performance materials or qualifying components for harsh service environments, the TMA 800 offers the accuracy, reliability, and usability demanded by today’s materials labs.

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  • TMA 800

FEATURES

  • True Vertical Alignment for Accuracy
  • Unlike most TMA units that use U-shaped geometry for convenience, the TMA 800 features a direct, vertical in-line design. This configuration minimizes friction, ensures uniform force application, and reduces noise and sample deformation—delivering superior measurement precision.
  • Oil Float Suspension System (Exclusive to the TMA 800)
  • During softening or transition, even slight mechanical noise or unintentional force can distort results. The Oil Float Suspension System supports the full weight of the probe and force coil, ensuring that only the intended force is applied. This system also dampens external vibrations, ensuring greater accuracy and protection of delicate materials.
  • Interchangeable Probes & Sample Holders
  • Easily switch between expansion, flexure, and penetration probes to meet a wide range of testing requirements. A specialized accessory allows for convenient mounting of films, fibers, and other delicate specimens, supporting industry-standard testing methods.
  • Advanced, Computerized Operation
  • The TMA 800 is fully computerized, with most functions controlled via an intuitive software interface. The pre-calibrated temperature sensor provides precise temperature readings, and calibration routines are straightforward—even for fast-scanning or complex samples. Software capabilities include:
  • • Real-time data display
    • Automatic zeroing and sample height reading
    • Curve optimization and overlay
    • Program archiving, comparison, and automated calculations
  • Cross-section of the TMA
  • The TMA 800 is an outstanding solution for laboratories seeking a cost-effective yet high- performance instrument to meet regulatory requirements for thermal expansion—especially in electronics, aerospace, composites, and other sensitive industries where dimensional stability is critical. Here are a few ways the TMA 800 is engineered for precision thermal analysis:
  • • The cold sink surface is cooled by a heat exchanger that easily connects to an external chiller using a single-bolt attachment, simplifying low-temperature operation.
    • The 40 mm furnace height provides an exceptionally wide and uniform temperature zone, ensuring consistent heating across the full sample length.
    • A high-resolution Linear Variable Differential Transformer (LVDT) sensor offers both the sensitivity to detect micron-level changes and the range to track large dimensional shifts.
    • The submerged float supports the full weight of the sample probe and core rod while dampening external vibrations and protecting sensitive quartz components.
    • The core rod and probe are fully supported by AMI’s unique Oil Float Suspension System, delivering friction-free motion and unmatched force control during softening transitions.
  • Whether you're focused on glass transition detection, CTE measurement, or structural deformation, the TMA 800 is optimized to deliver the accuracy, repeatability, and confidence your lab demands.

SPECIFICATIONS

  • Model TMA 800
    Isothermal Stability ± 0.4 °C
    Probe control Oil float System and Electronic Force
    Thermocouple Type Type K Nickel-Chromel
    Temperature Range Ambient °C to 800 °C (-80 °C to 800 °C with RCS System)
    Temperature Program 0.1 °C/min to 60 °C/min
    Temperature Accuracy 1°C
    Temperature Precision 1°C
    Maximum Sample Size Up to 10 mm in length
    Maximum Load 2N
    Cooling System Water Cooling (Standard); RCS Cooling (Option)
    Testing Geometries Expansion, Tensile, Penetration, 3 Point Bending, Compression, Dilatometer
    Power Requirements 100-120/220-240V, 60 / 50Hz
    Options Multi-channel Gas Inlet Controller (Gas switching for up to four gases)
  • TMA Data

 

AMI 400TPx

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INTRODUCTION

  • The AMI-400TPx sets a new benchmark in fully automated chemisorption analysis, combining advanced capabilities with outstanding economic efficiency. Designed with unattended operation at its core, it addresses the high standards and evolving needs of catalyst researchers while minimizing operating costs and maximizing laboratory productivity.
  • This space-saving system is equipped with robust control components and advanced data processing software, enabling the delivery of accurate kinetic parameters critical for catalyst characterization. Its compact, cost-effective design makes it an ideal choice for labs with limited space or budget, without compromising analytical performance.
  • The AMI-400TPx comes standard with temperature-programmed desorption (TPD), temperature-programmed reduction and oxidation (TPR/O), and temperature-programmed surface reaction (TPSR) capabilities. For laboratories with more advanced requirements, optional features include pulse chemisorption, a sub-ambient temperature module, a mass spectrometer for evolved gas analysis, and a gas chromatograph for detailed component separation and quantification. This flexibility allows users to tailor the system to their specific research goals while maintaining a practical, affordable approach to catalyst evaluation.
  • ✔ Temperature-programmed desorption (TPD)
    ✔ Temperature-programmed reduction/oxidation (TPR/O)
    ✔ Temperature-programmed surface reaction (TPSR)

    Options：

    ✔ Pulse chemisorption
    ✔ Sub-ambient module
    ✔ Mass spectrometer
    ✔ Gas chromatograph

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  • AMI-400TPx chemisorption analyzer

SOFTWARE

  • One of the key advantages of the AMI-400TPx is its ability to operate without constant operator supervision, making it an ideal solution for busy research environments. Once the experiment is set up and running, the system performs fully automated sequences, freeing up valuable time for researchers to focus on data analysis, planning, or other laboratory activities.
  • The instrument is designed to run on a standard Windows-based computer, providing a familiar and user-friendly interface. It also supports Internet connectivity, enabling remote monitoring and control when needed. This flexibility ensures that the AMI-400TPx can be easily integrated into the existing digital infrastructure of any laboratory.
  • Moreover, the same computer used to control the instrument can be utilized to manage additional laboratory tasks, streamlining operations and reducing the need for multiple workstations. This combination of automation, connectivity, and multitasking capability makes the AMI-400TPx a powerful and practical tool for modern catalyst research laboratories.
  • AMI-400TPx operation interface
  • The AMI-400TPx features a user-friendly interface and intuitive layout that simplifies experimental design. Users need only to input the changeable process variables, while the system automatically handles the rest—making setup quick and error-free. Flexible selection or customization of methods such as TPD, TPO, TPR, TPSR, and pulse calibration is supported, with the ability to configure up to 99 fully automated programs. A complete experiment can be set up in just a few minutes, streamlining workflows and boosting lab productivity.
  • AMI-400TPx experiment setting interface
  • The AMI-400TPx is equipped with a multi-layered safety system that combines hardware, firmware, and software safeguards to ensure reliable and secure operation. On the hardware side, a temperature safety switch provides immediate protection against furnace overheating. Built-in firmware-level factory-set alarms offer an additional layer of control to prevent unsafe operating conditions. At the software level, an intuitive interface allows users to configure a wide range of safety protection programs, including automated alarms, manual valve control, and real-time input of gas flow and temperature settings. Together, these features deliver robust, comprehensive protection throughout every stage of operation.
  • AMI-400TPx alarms setting interface

PARAMETERS

  •   AMI-400TPx
    Number of Stations< 1
    Temperature range -100°C(optional)-1200°℃
    Mass flow controller 1
    Temperature ramp rates 0.1 - 50 ℃/min
    Gas inlets 6 analysis ports, 4 pulse port
    Operating Pressure Atmospheric pressure
    Gas flow rate 2-100 sccm
    Sample tube

    Quartz U-shaped tube, bubble tube
    TCD detector Tungsten-rhenium filament
    Process Tubing 316L Stainless Steel, 1/16 inch
    Seals Viton, Buna-N,Kalrez,etc
    Dimensions L 17.0 in (43 cm) x W 25.2 in (64 cm) × H 24.5 in (62 cm)

AMI-400

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INTRODUCTION

  • The AMI-400 Series is the latest generation of fully automated chemisorption analyzers developed by Advanced Measurement Instruments (AMI). After nearly three years of focused development—driven by evolving research demands and supported by a robust global supply chain—the AMI-400 Series has officially launched.
  • Engineered for precision, safety, and user-friendly operation, the AMI-400 characterizes catalysts under both temperature-programmed and isothermal conditions. It provides detailed insights into surface chemistry, adsorption behavior, and reaction mechanisms—making it an essential instrument for catalysis, materials science, environmental research, and energy innovation.
  • Standard：
  • • Temperature-programmed desorption (TPD)
    • Temperature-programmed reduction/ oxidation (TPR/O)
    • Temperature-programmed surface reaction (TPSR)
    • Pulsed chemisorption
    • Dynamic BET surface area
  • Options：
  • • Sub-ambient temperatures
    • Mass spectrometer
    • Gas chromatograph
    • FTIR
    • Vapor dosing

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  • AMI-400 chemisorption analyzer

KEY FEATURES

  • Precise Thermal Conductivity Detector
  • The instrument is equipped with a high- precision, four-wire rhenium-tungsten TCD detector, featuring a constant temperature range from room temperature to 200°C. Additionally, filament types can be customized to match specific research needs, or the system can be integrated with auxiliary gas detectors such as mass spectrometers, FTIR, or FID, providing enhanced analytical versatility for a wide range of experimental applications.
  • All-in-One Constant Temperature
  • Precise Vapor Control – Ensures a stable and uniform temperature for consistent and reliable performance. Simplified Vapor Operation – Designed for easy and efficient vapor handling, optimizing experimental conditions and reproducibility.
  • Intelligent Gas Inlet Interface
  • A user-friendly port design eliminates the need for users to manually determine the type of gas used (carrier gas, process gas, or pulse gas); the software automatically selects the appropriate gas. The eight inlet ports meet daily testing needs, allowing multiple experiments without frequent gas interface changes, thus reducing user operations.
  • Integrated Constant Temperature Valve Box
  • The instrument’s process tubing is heated using a convection oven, maintaining a uniform temperature distribution with a maximum temperature of 150ºC. This design eliminates cold spots in the stainless-steel tubing, valves, and TCD detector, ensuring optimal performance and accurate measurements.
  • Precise Temperature Control
  • The system offers a temperature range from - 130°C (with optional configuration) to 1200°C, with linear heating ramps from 1 to 50°C/min.
  • Automatic Air-Cooling Module
  • Software - Controlled Automation – Enables precise and efficient cooling with no manual intervention required. Rapid Furnace Cooling - Utilizes air cooling technology to quickly lower furnace temperature, enhancing turnaround time and overall operational efficiency.
  • Accurate Flow Control System
  • High-precision MFCs regulate gas flow from 2–100 SCCM, ensuring stable, accurate measurements. A built-in mixing volume enables real-time gas blending for flexible experimental setups.
  • Cold Trap
  • A dedicated cold trap is installed downstream of the sample to effectively remove condensable substances before they reach the TCD detector, ensuring accurate measurements and extending the TCD’s operational lifetime.

SAFTEY FEATURES

  • Integrated Exhaust Fan – Prevents the accumulation of toxic and harmful gases, ensuring a safe and controlled operating environment.
  • Comprehensive Temperature Monitoring – Continuously tracks internal instrumentation temperature, TCD temperature, and process component temperatures to ensure precise thermal control and operational safety.
  • Intelligent Fault Diagnosis & Alarm System – Features automated fault detection and real- time alerts, enhancing system reliability, protection, and user safety.
  • Self-Locking Door
  • The instrument features an interlocked safety door, designed to prevent accidental contact during experiments. Equipped with an electronic safety lock, it ensures the door remains securely closed throughout the process, providing enhanced safety and operational reliability.
  • Triple Thermocouple Design
  • The system incorporates a Triple Thermocouple Design for precise temperature control and enhanced safety:
    • Bed Temperature Control Thermocouple – Ensures accurate temperature regulation of the sample.
    • Furnace Thermocouple – Monitors and stabilizes the overall furnace environment.
    • Overtemperature Protection Thermocouple – Provides an additional safety layer to prevent overheating.
  • Hard Wired Over-Temperature
  • power protection system, ensuring safe and reliable operation.

SOFTWARE

  • User-Friendly Software Interface
  • A clear graphical interface with logical flow simplifies navigation, minimizes errors, and ensures smooth experimentation with real- time monitoring and traceable data logging.
  • The system offers comprehensive data processing capabilities, including peak fitting, peak separation, integration, differentiation, and overlay analysis of signal peaks. This enables precise characterization of surface features of catalysts, distribution of acidic and basic-sites, activation energy, reaction kinetics, and more.
    • Clear Control System: Real-time monitoring with a visual software system
    • Simultaneously displays gas flow, temperature, and other information.
    • Real-time display of temperature programming
    • Real-time display of valve status
  • AMI-400 operation interface
  • AMI-400 experiment setting interface
  • AMI-400 experiment model setting
  • AMI-400 sample regulation
  • TPR on Cobalt Oxide
  • Pulse Chemisorption on 0.5% Pt/Al2O3

SPECIFICATIONS

  • Sample loading 0.1-5g
    Number of workstations 1 analysis station
    Temperature control range Room temperature -1200°C (option: sub-ambient starts at -130°C)
    Heating rate 0.1°C/min-50°C/min

    Gas input

    		 8 inlets standard (14 optional with gas-blending MFC)
    Standard operating pressure Ambient pressure (high pressure available with the AMI-300HP)
    Gas flow rate 2-100 ml/min (up to 3 MFCs with options)
    Sample tube type Ouartz U-shaped tube, bubble tube
    TCD Standard Tungsten Rhenium filaments (can change with options), temperature up to 200°c.
    Pipe material 316 stainless steel
    Additional detectors MS, IR Detector, GC, etc. (optional)
    Dimensions 17" (43 cm) x 25" (62 cm) x 25" (64 cm)

 

AMI-300

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INTRODUCTION

  • The AMl-300 is the flagship model in AMI's line of fully automated chemisorption analyzers, designed specifically by-and-for-catalyst researchers. Expanding on the groundbreaking AMI-1—the industry's first instrument to deliver fully automated dynamic chemisorption techniques in a single, integrated system—the AMI-300 enhances and advances this innovation, offering even greater capabilities and performance. Engineered with our proven chemisorption platform, the AMl-300 performs all major dynamic techniques required for comprehensive catalyst characterization, with precision, reliability, and ease of use.
  • The AMI-300 Series is also highly customizable to meet the specific needs of advanced research and industrial applications. From variable pressure ranges and multiple analysis stations to specialized software functions, Advanced Measurement Instruments (AMI) can tailor each system to meet the most stringent experimental requirements.
  • Whether you're conducting routine catalyst testing or advanced R&D, the AMI-300 delivers the flexibility, control, and automation your lab demands with the following functions:
  • Pulse Chemisorption
  • Quantify active metal dispersion and surface area with precise gas pulsing control.
  • Temperature-Programmed Reduction (TPR)
  • Evaluate reducibility and metal-support interactions.
  • Temperature-Programmed Oxidation (TPO)
  • Characterize oxidation behavior of reduced catalysts and carbon deposits.
  • Temperature-Programmed Desorption (TPD)
  • Analyze desorption strength and binding energies of surface species.
  • Temperature-Programmed Surface Reaction (TPSR)
  • Study surface reactivity under reactive gas environments.
  • Flow BET Surface Area Analysis
  • Determine surface area using dynamic nitrogen physisorption.
  • Pretreatment and Activation Routines
  • Calibrations and Standards Handling
  • Link up to 99 individual procedures into a single automated experiment

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  • Structural diagram of AMI-300 Series

KEY FEATURES

  • Electronic Flow Controllers
  • The system is equipped with high-quality linear mass flow controllers for precise and stable gas flow control, ensuring accuracy in chemisorption applications. The standard flow range is 0–100 sccm, with additional ranges available upon request for customized setups. These controllers offer excellent linearity and repeatability, providing reliable and consistent gas dosing throughout all programmed procedures.
  • High-Temperature Furnace
  • Features a versatile furnace system capable of reaching temperatures up to 1200°C. With optional sub-ambient cooling, the system can achieve temperatures as low as -130°C, making it suitable for a wide range of thermal and catalytic applications. The furnace supports linear temperature ramping from 0.1°C per minute to 50°C per minute, allowing precise control over heating profiles for reduction, oxidation, desorption, or reaction studies.
  • Sensitive Thermal Conductivity Detector
  • A highly reliable 4-filament thermal conductivity detector (TCD) is used to accurately quantify gas uptake. It offers excellent linearity, accuracy, sensitivity, and long-term stability. Multiple filament configurations are available to suit different analytical needs and gas types.
  • Various Sample Holders
  • The AMI-300 is the only system on the market that enables direct analysis of monolith samples (with an optional monolith holder), in addition to supporting a variety of quartz U-tubes—including standard, bubble, and custom designs. It accommodates a wide range of sample forms and loadings, such as powders, pellets, extrudates, and honeycomb cores, making it exceptionally versatile for real-world catalyst testing and development.
  • Precision Gas Control with Independent MFCs and Blending
  • The AMI-300 features three mass flow controllers (MFCs) for independent control of carrier, treatment, and auxiliary gases, with an optional fourth MFC for advanced setups. It supports internal gas blending for precise atmosphere control, and an auxiliary gas inlet can mix with carrier or treatment gases as needed. Rear-panel gas ports simplify access, with four each for treatment and carrier gases, two auxiliary/blending ports, and up to 12 total ports, ensuring versatility for chemisorption applications.
  • Interchangeable Valve Loops
  • A set of 13 optional injection loop modes provides an easy and flexible way to meet the adsorption volume requirements of different sample types. Available upgrades include microliter loops in 5, 10, 15, 20, 23, 50, 100, 250, and 500 μL sizes, as well as milliliter loops in 1, 2, 5, and 10 mL volumes. These options ensure precise dosing for both low and high surface area materials across a wide range of applications.
  • Low Internal Volume and Heated Lines
  • Low volume valves and 1/16" lines are used to reduce void volume and minimize peak spreading. All lines, valves, and parts of the liquid Vaporizer are heated to prevent condensation.
  • Materials for Maximum Durability
  • Seals and materials are designed to meet your specifications, with options that include premium elastomers (Kalrez), passivated 316 stainless steel, Monel or Hastelloy valves, and Inconel reactors.
  • Rapid Air cooling
  • The system rapidly cools the furnace, enabling quick sample turnaround and increased throughput for busy laboratories.
  • Precise Sample Temperature Measurement
  • Sample temperature can be measured or controlled by either the furnace thermocouple or a movable thermocouple positioned at the top of the sample bed, offering flexibility and precision for various experimental needs.
  • Cold Trap
  • A cold trap downstream of the sample holder protects the TCD from moisture and condensable vapors. It features a Dewar flask for slurry-based condensation or a desiccant option for low-volatility experiments, ensuring a stable baseline, extended detector life, and reliable TPR, TPO, and dynamic measurements.

SOFTWARE

  • The AMI-300 features an intuitive and clearly structured interface, with a well-organized graphical display and logical operational flow. This design dramatically reduces the learning curve, making the system easy to navigate for both new and experienced users.
  • Operation is simplified and streamlined, minimizing the risk of user error while ensuring smooth, consistent experimentation. The software provides comprehensive process monitoring, with real time status indicators and fully traceable data logging for enhanced reliability and experimental control.
  • In addition to control and monitoring, the AMI-300 offers advanced data processing capabilities, including peak fitting, peak separation, integration, differentiation, and overlay analysis. These powerful tools enable precise characterization of catalyst surface properties, distribution of acidic and basic sites, activation energy, reaction kinetics, and more—delivering deep insight into complex catalytic behaviors.
  • Software analysis interface

APPLICATIONS

  • Understanding the number of active sites, surface structure, and related properties-such as acidity/basicity, activity, selectivity, stability, and deactivation behavior-is essential for optimizing industrial reaction processes. In catalytic, chemical, and petrochemical industries, including fine chemicals, fuels, fertilizers, green catalysts, lithium-ion batteries, fuel cells, and emerging energy storage materials, surface activity is a key driver of performance and innovation.
  • Heterogeneous catalysts play a central role in critical industrial applications such as catalytic cracking, hydrogenation, selective oxidation, reduction, automobile exhaust treatment, isomerization, oxygen storage capacity (OSC), Fischer-Tropsch synthesis, and coal chemistry, among others.
  • At AMI, we advance catalytic material surface characterization with powerful, user-focused tools. With instruments like the AMI-300, we equip scientists and catalyst developers with precise, automated solutions to solve real-world challenges.
  • Analysis interface, a) automatic peak separation and fitting, b) multiple data for comparison, c) TPR experimental results of CuO, d) TPD experimental results of Ni Si.

SPECIFICATIONS

AMI-300
Catalyst charge 0.1-5 g
Temperature range RT - 1200°C
-130°C (optional) to 1200°C
Ramp rate 0.1-50°C/min
Operating pressure Atmospheric pressure or up to 100 bar (optional)
Gas input 10 inlets standard (12 optional )
Gas flow rates 2-100 sccm
Reactor types Quartz u-tubes
1/4", 3/8", 1/2"optional
Detector Standard Tungsten Rhenium filaments (can change with options), temperature up to 200°C
Materials of construction Kalrez, 316SS
Dimensions W: 22.1 in (56 cm) × H: 23.6 in (60 cm) × D: 24.0 in (61 cm)
Weight 106 lbs (48 kg)
Mass flow controllers 3 (4 optional)
High-temperature oven Up to 150°C
Vapor generator Optional
FTIR Optional
Mass Spectrometer Optional
FID Optional
Harsh-Service Allows for high-percentage sulfur compounds (S & S Plus models)
SSITKA Optional

SAFETY

  • Safety: A Three-Layered Approach
  • The AMI-300 is built with a comprehensive, three-layered safety system that protects both usersand equipment at every level of operation.
  • 1.Hardware Safety
  • Independent Over-Temperature Protectors on the furnace prevent thermal runaway.Resealable Pressure Relief Valves automatically vent excess pressure and reseal without damage.
  • Check Valves prevent backflow and protect against gas cross-contamination. Fail-Safe Design ensures the system defaults to a safe state during critical failures or power loss.
  • 2.Firmware-Level Protections
  • Embedded logic continuously monitors temperature, flow, and pressure in real time.Interlocks and thresholds ensure safe operation limits are never exceeded.
  • 3.Software Alarm Matrix
  • A dynamic alarm matrix provides live feedback and alert notifications for all monitored parameters.
  • Visual and audible alarms guide users through corrective actions.
  • Logging of alarm events ensures traceability and compliance with lab safety protocols.

AMI 300 SSITKA

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INTRODUCTION

  • The AMI-300 SSITKA is a high-performance chemisorption analyzer integrated with Steady-State Isotopic Transient Kinetic Analysis (SSITKA) capabilities. Compared to conventional chemisorption analyzers, the AMI-300 SSITKA employs SSITKA technology to enable in-depth investigation of catalyst reaction mechanisms and properties. The instrument rapidly switches the isotopic composition of a reactant within the reaction system while monitoring the relaxation dynamics of labeled products in real time. This methodology facilitates precise analysis of reaction mechanisms, measurement of kinetic parameters, catalyst characterization, and differentiation of parallel reaction pathways.
  • AMI-300 SSITKA Functions:
  • • Steady-State Isotopic Transient Kinetic Analysis (SSITKA)
    • Temperature-Programmed Desorption (TPD)
    • Temperature-Programmed Reduction/Oxidation (TPR/O)
    • Temperature-Programmed Surface Reaction (TPSR)
    • Pulse Chemisorption
    • Dynamic BET
    • Vapor Dosing (option)
  • The AMI-300 SSITKA distinguishes itself through its SSITKA experimental capability, which initiates isotopic switching only after the reaction system reaches steady-state conditions. For elements with negligible isotope effects (predominantly non- hydrogen systems), the instrument enables isotope tracing while maintaining continuous steady-state operation, achieving non-invasive in situ analysis. This methodology provides real-time tracking of surface active sites, quantifies intermediate species lifetimes, and resolves dynamic evolution of reaction pathways without perturbing catalytic processes.

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  • Chemisorption Analyzer + Mass Spectrometer

KEY FEATURES

  • Precision flow control system
  • High-precision MFCs with flow rates from 2-100 sccm.
  • High-Stability Programmed Temperature Reaction System
  • Engineered with precision temperature control up to 1200°C, this system achieves linear heating rates from 0.1 to 50°C/min with ±0.1°C regulation accuracy.
  • Rapid Cooling
  • Featuring automated control, the system enables rapid furnace cooling via air purging to reduce experimental duration.
  • Minimal Dead Volume
  • As an instrument capable of performing SSITKA experiments, the AMI-300 SSITKA utilizes 1/16 tubing with an optimized compact design, effectively minimizing dead volume.
  • Pressure Equalization and valve switching
  • SSITKA experiments require precise pressure equalization between two streams and rapid valve switching to minimize pressure spike variations in the mass spectrometer signal, ensuring accurate measurements.
  • Safety
  • The instrument features a proprietary over-temperature cutoff system for heating furnaces, pressure relief valves on the reactor and sparger, and firmware alarms at hardware limits. User-configurable alarms enhance lab safety by allowing customized alerts based on specific protocols.
  • Valve oven temperature control
  • The instrument's internal pipelines are heated by an oven, reaching a maximum temperature of 150°C. This ensures uniform heating, preventing "cold spots" in the stainless steel pipelines, valves, and TCD detector, thereby maintaining stable operation and accurate measurements.
  • High-Precision TCD Detector
  • The instrument comes standard with a high-precision rhenium-tungsten filament TCD (Thermal Conductivity Detector), featuring a constant temperature system capable of maintaining temperatures up to 200°C.
  • Cold Trap
  • The sample tube downstream is equipped with a dedicated cold trap filled with desiccant, designed to remove condensables prior to the gas stream entering the TCD.
  • Vapor Generator
  • The system is compatible with a vapor generator to vaporize liquid adsorbate for subsequent analysis, with a maximum operating temperature of 100°C.

SOFTWARE

  • The AMI-300 SSITKA software delivers comprehensive control and analytical capabilities, supporting flexible configuration of TPD, TPO, TPR, TPRS, pulse calibration, and other experiments through programmable sequences (up to 99 steps). This automated system performs advanced spectral processing including peak deconvolution, integration, differentiation, and superposition analysis to extract critical catalyst characteristics such as surface acid/base site distribution, activation energy values, and reaction kinetic parameters.
  • Adsorption Capacity Calculation
  • Peak Fitting
  • During SSITKA experiments, the system executes isotopic switching through specialized gas circuitry integrated with mass spectrometry detection. As illustrated in the schematic interface diagram, the gas flow control system employs a four-way valve (indicated by the red arrow) to perform transient switching between two feed streams. This valving mechanism enables the instantaneous transition of the reactant from 12CO to 13CO while maintaining experimental continuity.
  • AMI-300 SSITKA Software Interface
  • SSITKA experiments can be configured through the program interface shown below, featuring fully automated operation that eliminates the need for manual intervention. This streamlined process ensures operational reliability while minimizing human-induced errors, thereby ensuring precise test results.
  • SSITKA Procedure Setup

SPECIFICATIONS

  • Chemisorption Analyzer
    AMI-300 SSITKA
  • Mass Spectrometer
    Master 400
  • Mass Flow Controller Quantity 4
    Gas Inlet Quantity 12
    Temperature Range Standard: Room Temp. – 1200ºC
    Optional: -130ºC-1200ºC
    Heating Rate 0.1ºC – 50ºC/min
    Maximum Flow Rate 100 sccm
    Vapor Function Maximum Temperature 100ºC (Optional)
    Infrared Spectrometer FTIR Analysis (Optional)
  • Mass Range Optional: 1-100/200/300 amu
    Detection Limit ≤500 ppb
    Scanning Rate S1 ms-16 s/amu
    Sampling Pressure 0.5 bar - 1.5bar
    Maximum Heating Temp. of Sample Tube 200ºC
    Filament Material Iridium Filament
    Detector Faraday cup/ SEM electron Multiplier

EXAMPLES

  • Barium Chloride
  • This is an example of a reference material that shows temperature and enthalpy accuracy. In addition, this represents a good example of a fused peak analysis.
  • Calcium Oxalate
  • Calcium Oxalate is an excellent demonstration material for both DSC and TGA. This sample was run in the presence of Oxygen. The first DSC peak has an associated weight loss and represents bound water.

APPLICATIONS

  • Ammonia Synthesis:
  • Monitoring 15N2 dissociation dynamics on iron- based catalysts to identify rate- determining steps.
  • Fischer-TropschSynthesis:
  • Analyzing CO dissociation pathways on Co/Fe catalysts to optimize product selectivity.
  • Automotive Emission Control:
  • Investigating transient surface intermediates (e.g., adsorbed NO, NH3) during NO reduction reactions to enhance low- temperature activity in Pt-Rh catalysts.
  • CO2 Reduction:
  • Differentiating rate- determining steps between photo generated electron transfer kinetics and surface reaction processes.
  • CO2 Hydrogenation
  • (Methanol/Hydrocarbon Synthesis): Tracking dynamic evolution of surface intermediates (e.g., formate/carbonate species) to map CO2 activation pathways, enabling selective optimization of Cu-ZnO-based catalysts.
  • Methane Reforming:
  • Characterizing carbon species accumulation/elimination mechanisms on Ni/Co-based catalysts to mitigate carbon deposition-induced deactivation.
  • Sulfur Poisoning Mechanisms:
  • Investigate the poisoning effects of H2S on catalysts (e.g., Ni-based systems), elucidating the dynamic processes of sulfur species coverage on active sites.
  • Surface Active Site Characterization:
  • Differentiate the contributions of distinct surface active sites (e.g., step-edge sites, defect sites) to catalytic reactivity.

 

AMI-300IR

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INTRODUCTION

  • Chemisorption and thermal desorption methods, such as Temperature Programmed Desorption (TPD), are widely utilized for catalyst characterization. These techniques analyze the gases released from a catalyst surface, typically detected using a Thermal Conductivity Detector (TCD) or, in some cases, a mass spectrometer. While they provide valuable insights into the number and strength of active sites, they do not reveal details about the nature of these sites, the type of adsorption, or the presence of multiple adsorption site types.
  • To address this limitation, the AMI-300 IR integrates standard AMI techniques with real-time catalyst surface analysis using Fourier Transform Infrared (FTIR) spectroscopy. This innovative approach enables direct observation of adsorbed species, offering a deeper understanding of the adsorption and desorption processes.

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  • AMI-300 IR shown with integrated Thermo Nicolet iS5 FTIR spectrometer
  • Sample preparation involves compressing approximately 100 mg of catalyst powder into a thin, self-supported wafer, which is then secured in a proprietary catalyst holder within the IR cell. This configuration allows the IR beam to pass directly through the catalyst wafer, enabling in situ spectroscopic analysis. Figures 2 and 3 illustrate a schematic of the IR cell and a photograph of the actual unit, respectively.
  • Once the sample is positioned, it can undergo all standard AMI-300 experimental procedures while simultaneously monitoring surface species and adsorbates using the FTIR spectrometer. Concurrently, effluent gases can be analyzed via the system’s built-in thermal conductivity detector (TCD) or an optional mass spectrometer (MS).
  • This integrated analytical approach enables real-time characterization of catalytic processes, providing critical insights into adsorption and desorption phenomena at the molecular level.
  • Figure 2 Diagram of IR transmission cell
  • Figure 3 IR transmission cell. Heaters and Insulation have been removed for clarity
  • An example of the kind of information that can be obtained with this technique is the mode of adsorption and desorption of CO on a platinum surface.
  • Once the sample is positioned, it can undergo all standard AMI-300 experimental procedures while simultaneously monitoring surface species and adsorbates using the FTIR spectrometer. Concurrently, effluent gases can be analyzed via the system’s built-in thermal conductivity detector (TCD) or an optional mass spectrometer (MS).
  • This integrated analytical approach enables real-time characterization of catalytic processes, providing critical insights into adsorption and desorption phenomena at the molecular level.
  • A 1% Pt/Al2O3 catalyst was pressed into a wafer and mounted on an IR cell. The sample was reduced for several hours at 200°C, cooled to room temperature, and then flushed with inert gas for an hour in order to remove the gas-phase and any loosely held CO. The resulting IR spectrum (background subtracted) showed a single sharp line at approx- imately 2060 cm
  • IR spectrum of CO adsorbed on a 1% Pt/Al2O3 catalyst
  • This sample was then heated and the CO band followed as a function of temperature (figure 5). According to Beer’s Law, absorbance is proportional to concentration so from these measurements it is possible to construct an isobar and from it obtain a derived TPD. These are shown in figures 6 and 7, respectively.
  • CO signal as a function of temperature
  • Isobar of CO adsorbed on 1% Pt/Al2O3
  • Derived CO TPD

DETECTION

  • IR detection can also be used during pulse chemisorption procedures to ascertain the mode(s) of adsorption at different coverages. Figure 8 illustrates the adsorption of CO on platinum as the coverage increases. Even at low coverages, all the CO is adsorbed in a single mode, linearly, and there is no evidence for “bridged” CO. These insights are uniquely obtainable through IR spectroscopy, as it directly analyzes the catalyst surface rather than solely monitoring evolved gases.
  • Pulse chemisorption of CO on Pt by FTIR.

DIFFERENTIATION

  • Ammonia can be used as a probe molecule to determine the magnitude and type of acid sites in a catalyst. Below, in figure 9, is an example of ammonia adsorbed on a silica-alumina material. Three broad bands were identified as belonging to the adsorbed ammonia, at approximately 1760, 1480, and 1380 cm-1. The band at 1480 cm-1 can be ascribed to ammonia adsorbed on Brønsted acid sites, the others to ammonia adsorbed on Lewis sites (see for example, M. Niwa et al., J. Phys. Chem. B, 110 (2006) p. 264). By carrying out temperature programmed experiments and following the absorbance of the three bands as a function of temperature, it is possible to measure the isobars for each type of adsorption and assess the strength of each adsorption process. These isobars are shown in figure 10.
  • Ammonia bands on silica-alumina shown at three different temperatures
  • Isobars for each of the three main ammonia bands on silica-alumina.
  • It can be seen from the data above that the adsorption reflected in the 1380 cm-1 band is more strongly held than the other two, perhaps indicating a stronger Lewis-type bond.

SUMMARY

  • The AMI-300 IR expands upon AMI’s line of catalyst characterization instruments, which have been continuously developed and manufactured since 1984. By integrating real-time Fourier Transform Infrared (FTIR) spectroscopy with AMI’s standard detection methods, this system enables researchers to not only quantify the number and strength of active sites but also gain direct insights into the nature of adsorption processes.

 

AMI-300HP

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INTRODUCTION

  • The AMI-300HP is an automated high-pressure chemisorption and catalyst characterization system, engineered for advanced research under industrially relevant conditions. It performs dynamic temperature-programmed experiments at pressures up to 100 bar, enabling detailed studies of catalyst behavior under true process environments.
  • Designed for maximum flexibility, the AMI-300HP can also function as a high-pressure gas-phase reactor, providing a dual-purpose solution for laboratories requiring both chemisorption analysis and reaction testing in a single, integrated platform. This capability enhances its utility for catalyst performance evaluation, process development, and kinetic modeling.
  • Temperature-programmed desorption (TPD)
    Temperature-programmed reduction (TPR)
    Temperature-programmed oxidation (TPO)
    Temperature programmed surface reaction (TPSR)
    Pulse Chemisorption
    Ambient Vapor Dosing (Option)

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  • AMI-300HP Chemisorption Analyzer

KEY FEATURES

  • High-Pressure Operation
  • Clamshell furnace capable of reaching 1200°C (max. temperature dependent on reactor type), with precise ramp rates from 0.1°C to 50°C per minute.
  • Stable Gas Flow Control
  • High-precision mass flow controllers (MFCs) ensure stable flow control and consistent TCD baselines, even during temperature-programmed experiments.
  • Condensation Prevention
  • Heat-traced stainless steel flow path eliminates condensation risks, preserving gas- phase integrity.
  • High-Sensitivity Detection
  • A highly linear Thermal Conductivity Detector (TCD) provides exceptional accuracy and sensitivity across a broad range of conditions.
  • Software Alarm Matrix
  • A dynamic alarm matrix provides live feedback and alert notifications for all monitored parameters. Logging alarm events ensure traceability and compliance with lab safety protocols.
  • Advanced Safety and Protection
  • · Independent Over-Temperature Protectors on the furnace prevent thermal runaway.
    • Resealable Pressure Relief Valves automatically vent excess pressure and reseal without damage.
    • Check Valves prevent backflow and protect against gas cross-contamination.
    • Fail-Safe Design ensures the system defaults to a safe state during critical failures or power loss.
    • Positive Shut-off valves to ensure complete isolation of gas lines when not in use, enhancing safety and preventing cross-contamination.
  • Flexible Customization Options:
  • • Custom reactors in a variety of types and sizes,
    • High-pressure MFCs with customizable flow ranges to suit specific gas delivery requirements.
    • Vaporized liquid delivery systems for injecting volatile or condensable reactants.
    • Sub-ambient operation down to -130°

SOFTWARE

  • The AMI-300HP is fully automated to ensure ease of use, repeatability, and reliable operation. Its integrated software precisely controls and regulates valve positions, temperatures, gas flow rates, and detector parameters, providing seamless management of complex experimental setups.
  • Data acquisition is performed at a user-selectable rate, allowing for optimized resolution and performance. A front-panel status screen offers a real-time overview of the system, displaying valve positions, connected gas types, active temperatures, and detector signals—all at a glance.
  • The built-in data handling package enables users to:
  • Display and integrate signal peaks
    Calculate chemisorptive parameters
    Overlay and compare datasets
  • Users can link up to 99 individual procedures in a single, continuous run, enabling fully automated, comprehensive catalyst characterization. Additionally, routine experiments can be designed and stored for quick and easy retrieval.
  • Operating Screen - A complete Overview of All Experimental Parameters

SPECIFICATIONS

  • Catalyst charge*1: 0.1 - 5 g
    Temperature range*2 : -130°C (option) to 1200°C
    Ramp rate: 0.1 - 50°C/min
    Operating pressure*3 : 100 bar
    Gas inlets: 4 (10 or 14 optional)
    MFCs*4 : 2 high-pressure MFCs, 1 standardMFC (Extra MFC optional)
    Reactor types*5 : Atmospheric pressure: Quartz, High pressure: 316 stainless steel
    Detector: 4 filament TCD (Standard W-Refilaments, other materials optional)
    Materials of construction: Stainless steel
  • Notes:
  • *1 - Custom reactors available for increased loading.
    *2 - Standard temperaturerange is RT - 650°C, -130°C - 1200°C requires options.
    *3 - Higher pressure available in custom instruments.
    *4 - The number of MFCs can change to increase capabilityor lessen cost.
    *5 - Other reactor materials are available.

 

Switch-6

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  • The automatic multi-channel gas inlet controller, Switch-6, features an integrated design, enabling one- button switching among multiple gases and supporting up to six input ports. Users can select any gas path for output as needed, making it ideal for applications requiring frequent gas changes during various testing procedures.
  • This device is highly compatible, designed to work seamlessly with the full range of AMI instruments and a wide variety of systems from other manufacturers.
  • Safety
  • Features a streamlined valve disassembly and assembly when switching between different gases, significantly reducing the risk of leakage from manual operations. Additionally, a corrosion-resistant version is available upon request to accommodate more demanding environments.
  • Simplicity
  • Enables automatic gas switching with a single button press. It also performs automatic pipeline purging, preventing residual gases from affecting the accuracy of subsequent experimental results.
  • Flexibility
  • Supports six input ports and one output port, with the option to cascade multiple units—allowing for 6, 12, 18, or more gas paths as needed.

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  • Automatic Multi-channel Gas Inlet Controller
  •   Switch-6
    Number of ports 6 (12, 18 are optional)
    Tubing size 1/8 inch
    Pressure Near atmospheric
    Gas types N2, H2, Ar, and other gases (corrosive gases such as H2S, NH3, HCl, etc., are available as options)
    Dimensions and weight L 28.7 in (730 mm) ×
    W 9.5 in (240 mm) ×
    H 10.0 in (253 mm),
    11 lbs (5 kg)

 

Prep Series

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Prep 8A- VACUUM DEGASSER

  • The Prep 8A features two independent working modules, each with four degassing ports, allowing simultaneous preparation of up to eight samples. Each module operates with independent temperature and time controls, enabling flexible and parallel sample degassing.
  • A multi-stage vacuum pumping system, regulated by an internal pressure transducer, prevents sample elutriation, controls switching pressure, regulates nitrogen backfill pressure, and maintains precise pressure control during furnace descent. Programmable temperature ramping and a built-in cooling fan ensure efficient, precise, and controlled thermal treatment.
  • The system is operated via a 7-inch touchscreen interface with automatic parameter memory, streamlining operation and enhancing usability.
  • Use-Case:
  • High-capacity vacuum degasser with vertical configuration; ideal for labs prioritizing throughput, thermal uniformity, and complete automation.

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  • Prep 8A
  • Model Prep 8A
    Temperature RT-400°C

    Control accuracy

    		 ±1°C
    Degassing port 8
    Pump 1 mechanical pump
    Heating method Programmed temperature ramping (Optional)
    Dimensions and weight L 17.0 in (430 mm)
    W 16.0 in (405 mm)
    H 28.5 in (725 mm)
    80 lbs (36 kg)
Prep 8M-VACUUMDEGASSER
  • Prep 8M
  • ThePrep 8M vacuum degasser features a single working module with eight degassing ports, enabling the simultaneous preparation of up to eight samples under uniform thermal conditions. All stations operate at the same temperature, making it ideal for processing multiple samples consistently.
  • Designed for efficiency and ease of use, the Prep 8M allows quick disassembly of sample tubes, supports grouped programmed temperature ramping,and features a purge-assisted cooling function for rapid cooldown. Its anti-elutriation design ensures sample integrity throughout the vacuum degassing process.
  • Temperature is fully programmable to deliver consistent and precise thermal treatment, while vacuum and backfill are manually controlled, giving operators the flexibility to manage timing and sequencing based on specific sample requirements
  • Use-Case:
  • Compact benchtop vacuum degasser with semi-automated functionality suited for space-constrained labs needing 8-port capacity.
  • Model Prep 8M
    Temperature RT-400°C

    Control accuracy

    		 ±1°C
    Degassing port 8
    Pump 1 mechanical pump
    Heating method Programmed
    Dimensions and weight L 15.5 in (395 mm)
    W 18.0 in (455 mm)
    H 14.0 in (358 mm)
    66 lbs (30 kg)

Prep 4M-VACUUM DEGASSER

  • ThePrep 4M vacuum degasser features four independent degassing stations, each with individually adjustable temperature and time parameters. This allows for the simultaneous preparation of multiple samples under different conditions, making it ideal for laboratories handling diverse materials.
  • Designed to maintain sample integrity, the system includes an anti-elutriation design to prevent particle loss during evacuation.It also supports optional programmable temperature ramping for controlled and repeatable heating cycles. Vacuum and nitrogen backfill are manually controlled, giving operators the flexibility to manage process timing based on specific sample requirements.
  • ThePrep 4M offers a compact and versatile solution for reliable sample pretreatment in surface area and gas adsorption analyses.
  • Use-Case:
  • Economical 4-port vacuum degasser for low-to-mid throughput needs; temperature ramping available as an option.
  • Prep 4M
  • Model Prep 4M
    Temperature RT-400°C

    Control accuracy

    		 ±1°C
    Degassing port 4
    Pump 1 mechanical pump
    (Ultimate vacuum 10-2 Pa, optional)
    Heating method Programmed temperature ramping (Optional)
    Dimensions and weight L 16.0 in (410 mm)
    W 14.5 in (361 mm)
    H 27.6 in (702 mm)
    55 lbs (25 kg)

Prep 8F –FLOW DEGASSER

  • Prep 8F
  • The Prep 8F is a versatile, high-throughput degassing system featuring two independent working units, each with four degassing ports, allowing the simultaneous preparation of up to eight samples. Each unit offers independent control of degassing temperature and time, providing flexibility for handling different sample types.
  • Designed for dynamic(flow) degassing, the system ensures efficient and uniform sample preparation without the use of vacuum. A programmable temperature ramping function enables controlled heating, while a built-in furnace fan facilitates rapid cooling between runs.
  • Operation is streamlined through a 7-inch integrated touchscreen with an intuitive interface and automatic parameter memory, making the Prep 8F an ideal solution for high-throughput sample pretreatment in surface area and gas adsorption analysis
  • Use-Case:
  • Flow-based degasser with 8 ports;designed for applications where vacuum degassing is not preferred or feasible.
  • Model Prep 8F
    Temperature RT-400°C

    Control accuracy

    		 ±1°C
    Degassing port 8
    Pump 1 mechanical pump
    Heating method Programmed temperature ramping (Optional)
    Dimensions and weight L 27.0 in (680 mm)
    W 16.0 in (404 mm)
    H 15.7 in (400 mm)
    70 lbs (32 kg)

 

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