The Effect of Water Vapor on the Adsorption Performance of Solid Adsorbents

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Introduction

In many industrial gas separation processes, the presence of water vapor presents a major challenge. Whether in exhaust gas treatment or coalbed methane (CBM) recovery, moisture in the gas stream can severely degrade the performance of solid adsorbents. During CBM extraction, significant amounts of methane are mixed with air, forming low-concentration mixtures—over 70% of which are typically released directly into the atmosphere. Effective methane/nitrogen separation from these dilute streams offers both environmental and economic advantages.

 

However, water vapor often interferes with this separation, particularly in materials such as metal-organic frameworks (MOFs). These materials are known for their high affinity to water, which competes with target gases for active sites and can destabilize the framework structure. Understanding this competitive behavior is critical to optimizing performance—especially when selecting adsorbents for use in real-world environments.

 

MOFs in Humid Methane/Nitrogen Mixtures

To assess the impact of moisture on separation performance, tests were conducted on DMOF and DMOF-TM using a 50/50 CH₄/N₂ mixture under controlled relative humidity conditions.

FIGURE 1: Permeation curves for CH₄/N₂ (50/50) at 298 K and 1 bar for (a) DMOF and (b) DMOF-TM at 20% and 40% RH

 

At 20% RH, both materials performed similarly to dry conditions. However, at 40% RH, DMOF failed to recover high-purity methane, while DMOF-TM exhibited earlier breakthrough and reduced selectivity. The decline is attributed to water’s competitive adsorption, which disrupts methane/nitrogen separation【1】.

With its ability to simulate real environmental humidity, AMI's BTSorb™ breakthrough system plays a vital role in quantifying this performance loss under humid conditions—enabling material screening that mirrors operational realities.

 

VOC Adsorption with Hydrophobic MOFs

Moisture also interferes with VOC removal. Hydrophobically modified UiO-66-NDC(50) shows decreasing toluene capacity with rising RH, from 143 mg/g at 0% RH to just 50 mg/g at 80%.

FIGURE 2: (a) Toluene adsorption capacity vs. humidity; (b)–(c) breakthrough curves for UiO-66-NDC(50)

 

Despite the presence of nonpolar functional groups, water molecules still dominate the adsorption landscape at high humidity. The ability to rapidly screen such performance drop-offs using AMI's modular vapor-generation capabilities gives researchers clear insight into material suitability【2】.

 

Ethylene Purification in Humid Gas Streams

In ethylene production, residual CO₂ and C₂H₂ must be removed to ultra-trace levels. Zeolite ETA-MOR is one candidate, but its performance suffers in humid conditions. However, after organic amine modification, ETA-MOR-0.5 maintains over 85% separation efficiency at 75% RH.

 

Figure 3: Permeation Curves for ETA-MOR Zeolite Molecular Sieve at 298 K (flow rate 5 ml/min); (a,b) Permeation Curves for ETA-MOR Zeolite in CO2/C2H2/C2H4 (1/1/98, v/v/v) Atmosphere under Dry and 75% RH Conditions; (c) Permeation Curve for ETA-MOR Zeolite in C2H2/C2H4 (1/1/99, v/v/v) Atmosphere; (d, e) Cycle Stability of ETA-MOR Zeolite in CO2/C2H4/C2H4 (1/1/98, v/v/v) Atmosphere under Dry and 75% RH Conditions; (f) Permeation Curves for Modified and Unmodified ETA-MOR at Different Humidities.

 

The amine modification alters the acid-base environment of the pores, enhancing hydrophobicity and reducing diffusion channels. AMI systems allowed for direct comparison of modified vs. unmodified materials across variable humidity conditions, helping pinpoint materials capable of high-selectivity operation under moisture stress【3】.

 

CO₂ Capture from Flue Gas with Humidity

Post-combustion CO₂ capture from flue gas—typically containing nitrogen, CO₂, and water vapor—is another key application where adsorbent performance must be tested under realistic humidity. While materials like NaX and EFS-10 degrade under moist conditions, functionalized sorbents such as EDA-Y and PEI/SiO₂ maintain strong performance due to the presence of amine groups that preferentially bind CO₂.

 

Figure 4: (a) TSA Adsorption-desorption Curve for CO2 (adsorption: H2O/CO2/Ar/N2 (3/15/2/80, v/v/v/v) at 313K, Desorption CO2 100, v@403K); (b) TSA Adsorption-desorption Curve for CO2 (CO2/Ar/N2 (15/2/83, v/v/v) at 313K, Desorption CO2 100, v@403K); (c) Comparison of CO2 Adsorption Amount at 3% Humidity and Dry conditions.

 

These results, made possible through AMI’s controlled-vapor testing infrastructure, demonstrate the need for precise experimental setups when evaluating adsorbents for use in flue gas environments【4】【5】.

 

Experimental Methods

Permeation and breakthrough experiments were carried out using AMI’s BTSorb™ 100 system.

  • Sample: 0.35 g packed into a 1 mL column
  • Pre-treatment: He purge at 150°C for 1 hour
  • Detection: AMI-Master 400 mass spectrometer

Test Conditions:

  • Dry CO₂/N₂: 100 mL/min; 10% CO₂ / 90% N₂; 1 bar; 313 K
  • Humid CO₂/N₂ (RH 80%): 106.2 mL/min; 9.41% CO₂, 84.73% N₂, 5.86% H₂O; 1 bar; 313 K

 

With AMI’s advanced instrumentation, vapor content can be tightly regulated, enabling high-fidelity simulation of industrial scenarios.

 

Results and Discussion

Figure 5 (a) Breakthrough Curves of the Molecular Sieve under Dry CO2/N2 (10/90, v/v) Atmosphere;

(b) Breakthrough Curves of the Molecular Sieve under CO2/N2 (10/90, v/v) Atmosphere with 80% Relative Humidity (RH=80%).

 

 

Under dry conditions, the CO₂ adsorption capacity reached 1.71 mmol/g, with a standard breakthrough curve. Under 80% RH, the capacity dropped to just 0.528 mmol/g due to water displacing CO₂ at the active sites. This competitive behavior would be missed using dry-gas-only evaluations—further underscoring the importance of humidity simulation during testing.

 

Conclusion

Water vapor is a critical factor affecting adsorption performance in gas separations. Whether for methane, VOCs, ethylene purification, or CO₂ capture, competitive adsorption by water significantly alters the effectiveness of many adsorbents.

AMI systems—equipped with integrated steam generators, configurable gas mixers, and real-time mass spec analysis—enable researchers and process engineers to test under realistic, application-specific conditions. This ensures more reliable data, better materials selection, and ultimately, more efficient gas separation processes.

 

References

[1] Li Tong. Study on Efficient Separation of Methane/Nitrogen under Humid Conditions Using DMOF Materials. Taiyuan University of Technology, 2022.
[2] Li Wenxiang. Hydrophobic Modification of MOFs (UiO-66) and VOC Adsorption Performance under Humidity. Shandong University, 2022.
[3] Shi X., Zhang B., Chen H. Organic Molecular Gate in Mordenite for Deep Removal of C₂H₂ and CO₂ from Ethylene. Sep. Purif. Technol., 2023.
[4] Mu J., Fang Z., Zhu H. Solid Adsorbents for CO₂ Capture in Flue Gas. Fine Chemicals, 2023, 40(9): 1857–1865.
[5] Cho H., Choi M., Sung S., et al. EDA-Grafted Y Zeolite: Regenerable CO₂ Adsorbent via TSA without Urea Formation. Energy Environ. Sci., 2016, 9(5): 1803–1811.

 

Selective Adsorption of Small Hydrocarbons Using MOFs

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Abstract

This application note presents a study on the selective adsorption behavior of small molecule hydrocarbons—acetylene (C₂H₂), ethylene (C₂H₄), propane (C₃H₈), and propylene (C₃H₆)—on various metal-organic framework (MOF) materials. Using AMI’s Micro 300 for high-precision static adsorption isotherms, this work highlights the potential of MOFs in non-cryogenic, energy-efficient separation of light hydrocarbons. Although dynamic breakthrough testing was not performed in this study, AMI’s BTsorb 100 system is noted as an ideal platform for future validation under flow conditions.

Introduction

In the petrochemical industry, C₂ hydrocarbons are foundational to the production of downstream products including polymers, rubbers, and specialty chemicals. However, separating these components remains difficult due to their similar boiling points and molecular sizes. Conventional cryogenic distillation is energy-intensive and cost-prohibitive.

Recent studies have demonstrated that MOF materials—due to their tunable pore size and chemically functionalized internal surfaces—offer a promising solution for energy-efficient separation of these hydrocarbons. Examples include the SIFSIX series, known for acetylene/ethylene selectivity (FIGURE 1), and flexible frameworks like sql-SIFSIX-bpe-Zn, which undergo reversible transformations in the presence of C₂H₂ (FIGURE 2). Additionally, MIL-142A, a cross-linked Fe-MOF, has shown remarkable capacity and selectivity for C₃H₈ over CH₄ under ambient conditions (FIGURE 3).

Figure 1: (a) SIFSIX-1-Cu-4C2D2 Structural Diagram and (b-f) C₂H₂ Adsorption and C₂H₂/C₂H₄ Separation Schematic

Figure 2: (Left) Adsorption Changes of C₂H₂ during the SC-SC Transition of the two-dimensional Flexible MOF Material sql-SIFSIX-bpe-Zn; (Right) C₂H₂/C₂H₄ Separation Ratio.

Figure 3: C1/C2/C3 Three-component Gas Separation Diagram of MIL-142A

Experimental Methods

Instruments

  • AMI Micro 300: Used to collect static adsorption isotherms of gases on MOF samples at room temperature.
  • AMI BTsorb 100: Identified as the intended platform for future dynamic breakthrough testing of gas mixtures under flow conditions.

Conditions

  • Temperature: Ambient (~298 K)
  • Pressure Range: Up to 100 kPa
  • Gases Tested: C₂H₂, C₂H₄, C₃H₆, C₃H₈
  • MOF Samples: Labeled MOF-1, MOF-2, and MOF-3

Results and Discussion

C₂ Hydrocarbon Adsorption

Adsorption isotherms recorded on the AMI Micro 300 revealed a distinct difference in uptake behavior between acetylene and ethylene. For MOF-1, acetylene displayed a steep increase in adsorption between 4–6 kPa, followed by saturation (FIGURE 4). Ethylene, by contrast, showed negligible adsorption across the tested pressure range.

Figure 4: Adsorption Isotherm on Micro 300

These results are consistent with the known affinity of fluorinated MOFs for triple-bonded hydrocarbons, likely due to π-H interactions with exposed SiF₆²⁻ groups.

C₃ Hydrocarbon Selectivity

Further experiments evaluated the adsorption of propane and propylene on MOF-2 and MOF-3. Both materials exhibited strong uptake of propylene while showing no detectable adsorption of propane (FIGURE 5). The clear selectivity suggests that steric effects and kinetic diameter differences influence uptake behavior.

Figure 5: Adsorption Isotherm on Micro 300 of MOF 2 and 3

Note on Dynamic Testing

Although dynamic breakthrough testing was not conducted as part of this study, the AMI BTsorb 100 is designed for such evaluations and remains a valuable tool for future studies aimed at simulating industrial gas separation scenarios.

 

Applications

These findings indicate that:

  • MOF-1 is suited for trace acetylene removal from ethylene streams in polymer production.
  • MOF-2 and MOF-3 can selectively capture propylene, ideal for propylene recovery or purification from LPG mixtures.

By pairing AMI’s Micro 300 for equilibrium data and the BTsorb 100 for future dynamic testing, researchers can comprehensively assess adsorbent materials for industrial gas separation applications.

 

Conclusion

This study underscores the promise of MOF-based adsorbents for targeted separation of light hydrocarbons at ambient conditions. While this work focused on static adsorption behavior, AMI’s suite of instruments—especially the Micro 300 and BTsorb 100—provides a scalable, versatile platform for future full-cycle evaluation from material screening to process development.

DSC 600

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
  • 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

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.
  • 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

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.
  • 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

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.
  • 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

 

RuboSORP MSB

INTRODUCTION

  • Accurate mass measurement is critical across materials science, chemical engineering, energy storage, and catalysis research. While traditional electronic microbalances offer high precision under standard laboratory conditions, they are often unsuitable for extreme environments involving high pressure, high temperature, or corrosive and reactive gases. The Magnetic Suspension Balance (MSB) addresses these challenges with contactless, high-resolution mass measurement in fully isolated, controlled environments.
  • The RuboSORP MSB employs a magnetically coupled weighing system that physically separates the microbalance from the sample atmosphere. This design allows for real-time gravimetric analysis under demanding conditions—without the need for purge gases or proximity protections—enabling accurate study of sorption processes, adsorption kinetics, vapor-liquid equilibria, and gas-phase density.
  • Samples are housed within a sealed, corrosion-resistant chamber. Any change in mass is transmitted through a magnetic assembly to a high-precision microbalance operating at ambient pressure. This contact-free transfer ensures long-term stability, exceptional resolution, and minimal signal drift—even over extended experimental durations or during thermal cycling.
  • A standout feature of the RuboSORP MSB is its dual-sample capability. The system can simultaneously analyze two samples or substitute one with a calibrated sinker for direct gas density measurement via Archimedes’ principle. This is especially valuable in high-pressure or multi-component gas systems where conventional equations of state fall short.
  • RuboSORP MSB

FEATURES

  • Automatic Drift Correction & Recovery
  • The RuboSORP MSB actively compensates for pressure and temperature-induced drift, maintaining accurate readings throughout adsorption, desorption, or thermal cycles. A builtin self-recovery system prevents data loss in case of unexpected motion or imbalance, ensuring uninterrupted experiments.
  • Density / Double Sample Measurement
  • The dual sample measurement module enables experiments with two samples simultaneously. One position can be fitted with an inert float or calibrated sinker, allowing direct measurement of gas density via Archimedes' principle—especially critical at high temperatures and pressures where traditional equation-of-state methods become unreliable. This capability is particularly valuable in multicomponent gas adsorption studies, as it enables real-time tracking of composition changes without the need for external gas analysis tools such as chromatography.
  • Optional Viewing Cells
  • Optional high-pressure viewing cells provide in-situ visual access to the sample chamber, enabling direct observation of swelling behavior, phase transitions, and vapor–liquid equilibrium phenomena. A highstrength window allows monitoring of expansion and adsorption processes in polymer and ionic liquid samples through an integrated image acquisition system. The system operates reliably under extreme conditions, with a maximum temperature of 200 °C and pressure up to 35 MPa.
  • Optional Viewing Cell
  • Modular Design & Flexible Configuration
  • The RuboSORP MSB features a fully modular setup with interchangeable components for pressure, temperature, gas dosing, and reactor control. Visual cells, custom sample holders, and a range of heating options—from cryogenic to high-temperature—ensure adaptability to diverse applications.
  • Smart Software & Data Integrity
  • Automated control software manages all experimental parameters in real time and includes built-in uncertainty analysis. It supports ISO 9001 and GUM standards, generates adsorption curves on the fly, and logs data in accessible formats for seamless analysis and reporting.
  • Sealed Coupling Chamber
  • Enables safe use of toxic, reactive, and corrosive fluids—allowing experiments to be conducted under real-world conditions without compromising balance integrity.
  • Customizable Sample Cells and Reaction Baskets
  • To simulate real-world reaction conditions, AMI offers a range of interchangeable measuring cells and sample basket modules. Sample cell dimensions—up to 70 mm in diameter—can be customized to suit various materials and experimental needs. AMI also provides tailored solutions, including the development of new basket designs based on customer requirements. Available options include FF-type fixed bed baskets, FT-type high-efficiency reaction baskets, and specialized baskets designed for ionic liquids.
  • Industry-Leading Sample Capacity
  • Supports the widest max sample capacity, accommodating large or irregular samples without compromising accuracy—ideal for heterogeneous materials and custom applications.
  • Exceptional Stability Over Time
  • The system uses a load decoupling mechanism to periodically remove the sample from the balance, perform automatic recalibration, and resume the experiment—ensuring long-term measurement stability and eliminating drift during extended runs.

DATA ANALYSIS

  • The RuboSORP MSB can measure various types of gas adsorption isotherms, determine adsorption isobars, obtain adsorption kinetics curves, and conduct multi-component competitive adsorption.
  • It can handle all common gases, including but not limited to hydrogen, nitrogen, methane, carbon monoxide, carbon dioxide, and oxygen, as well as corrosive gases such as: chlorine, hydrogen sulfide, and sulfur dioxide. Additionally, it can be paired with a visual measurement module or a separate visual observation module to study the absorption or volume change of supercritical carbon dioxide.
  • Application of two-component competitive adsorption
  • For the study of competitive adsorption of two-component gases, AMI offers an ingenious solution, which is to measure the density of the gas mixture at adsorption equilibrium in real time through a special three-position Magnetic Suspension Balance, and then calculate the adsorption amount of each gas in the two component gas in real time through software, without the need for external chromatography/mass spectrometry tools.
  • Sulcis coal sample carbon dioxide/methane binary competitive adsorption data

PRESSURE SYSTEM

  • The RuboSORP MSB’s gas system is equipped with two high-precision pressure sensors: a sensor with a range to 5 MPa and a sensor with a range to 40 MPa, both with an accuracy of 0.01 bar
  • Gas System Models:
  • System Type Model No. Pressure range(bar) Temperature Control Intake quantity Option
    Dynamic Gas System GDU-150D-A 150 none 2 Mechanical pump/
    Molecular pump
    Vapor dosing
    Extra gas path
    Additional pressure sensor
    GDU-150D-H 150 100℃ 2
    GDU-350D-A 350 none 2
    GDU-350D-H 350 100℃ 2
    Static Gas System GDU-150S-A 150 none 2 Mechanical pump/
    Molecular pump
    Vapor dosing
    Extra gas path
    Additional pressure sensor
    GDU-150S-H 150 100℃ 2
    GDU-150S-H mix 150 100℃ 3
    GDU-350S-A 350 none 2
    GDU-350S-H 350 100℃ 2
    GDU-350S-H mix 350 100℃ 3
    GDU-700S-A 700 none 2
    GDU-700S-H 700 100℃ 2
    GDU-700S-H mix 700 100℃ 3

SPECIFICATIONS

  • Model Max Pressure Max Temperature Max Sample Loading Resolution Vacuum Option GDU Capability View Cell & Camera Option Model
    MSB-150 150bar 400°C 25g 10μg Yes Dynamic or Static Yes MSB-150
    MSB-150 150bar 400°C 50g 10μg Yes Dynamic or Static Yes MSB-150
    MSB-150 150bar 400°C 10g 1μg Yes Dynamic or Static Yes MSB-150
    MSB-350 350bar 400°C 25g 10μg Yes Dynamic or Static Yes MSB-350
    MSB-350 350bar 400°C 50g 10μg Yes Dynamic or Static Yes MSB-350
    MSB-350 350bar 400°C 10g 1μg Yes Dynamic or Static Yes MSB-350
    MSB-700 700bar 150°C 25g 10μg Yes Static Only No MSB-700
    MSB-700 700bar 150°C 50g 10μg Yes Static Only No MSB-700
    MSB-700 700bar 150°C 10g 1μg Yes Static Only No MSB-700

APPLICATIONS

  • Hydrogen & Methane Storage
  • High-pressure isotherms provide real-world data critical for evaluating advanced storage materials including MOFs and metal hydrides.
  • Corrosive Gas Research
  • Quantify adsorption of SO2, HF, Cl2, and similar aggressive gases at controlled temperature and pressure—safely and accurately.
  • Supercritical CO2 Studies
  • Track sorption behavior and reaction kinetics in polymers, biomass, or coal under supercritical conditions with full visual feedback and gas-phase density measurement.
  • Multi-Component Adsorption
  • By integrating a calibrated gas mixer, the MSB measures real-time competitive adsorption of gas mixtures, eliminating the need for offline chromatography.

RuboSORP MSB DVS

INTRODUCTION

  • Designed for advanced materials research, this system combines a precisely controlled environment—with wide-ranging vapor delivery, temperature flexibility, and compatibility with aggressive chemical conditions—to enable complex DVS experiments across a variety of challenging applications. The MSB design integrates effortlessly with automated vapor and temperature regulation, user-defined testing protocols, advanced data analysis, and comprehensive reporting, enhancing both workflow efficiency and experimental clarity.
  • What truly distinguishes MSB-based systems from traditional dynamic vapor sorption instruments is their contactless measurement principle—ensuring a stable, contamination-free environment for collecting high-quality data under real-world conditions.
  • VAPOR SORPTION WITH:
  • √ High Precision
    √ Corrosive Environments
    √ Drift Zeroing
    √ High-throughput
    √ Wide Temperature Range
  • RuboSORP MSB DVS

KEY FEATURES

  • Magnetic Suspension Balance Technology:
  • High Sensitivity and Accuracy:
  • Measures weight changes with microgram precision. Magnetic suspension eliminates mechanical contact, reducing friction and wear.
  • Temperature Stability:
  • Operates reliably over wide temperature ranges (e.g., -20°C to 400°C).
  • Corrosion Resistance:
  • Ideal for working with reactive or corrosive vapors since the sample is isolated from the balance.
  • Advantages Over Conventional DVS Systems:
  • No Mechanical Wear:
  • Magnetic suspension eliminates the need for a conventional balance in contact with the sample.
  • Reduced Drift:
  • Long-term experiments benefit from high stability with drift correction at each data point. Versatile Environmental Control: Operates with a variety of gases and vapors under controlled conditions.
  • High-Throughput:
  • Runs two samples simultaneously.

BENEFITS

  • Over nearly four decades of refinement, magnetic suspension balances have become an essential tool across disciplines including materials science, pharmaceuticals, environmental engineering, food technology, and energy materials research. Their ability to accurately measure weight changes under varied and sometimes corrosive/harsh conditions has proven invaluable for investigating adsorption phenomena, elucidating kinetics, and determining fluid properties such as vapor pressure and density.
  • By employing MSB technology, the system isolates the sample from external mechanical influences, vibrations, and environmental fluctuations. This isolation results in an exceptionally stable baseline and highly sensitive mass resolution, capturing even the most subtle sorption events with reproducible precision. The hermetically sealed chamber design further ensures that sample integrity is maintained throughout the experiment, minimizing the risk of contamination and thereby yielding more reliable and representative sorption isotherms and kinetics data.
  • Conventional gravimetric analysis in dynamic vapor sorption (DVS) often relies on mechanical connections and traditional balances. These systems can introduce drift, frictional effects, and frequent re-calibration requirements, which may compromise measurement quality and long-term stability.
  • Comparison between conventional microbalances and magnetic suspension balance
  • In contrast, magnetic suspension balance technology offers a fundamentally different approach, enabling direct measurement of mass changes without mechanical contact to the sample crucible.

SCHEMATICS

  • Vapor 10D Diagram
  • Vapor 10S Diagram

SCHEMATICS

  • Mass Range Vapor-10S Vapor-1S Vapor-10D Vapor-1D
    Resolution 10 μg 1 μg 10 μg 1 μg
    Maximum Sample Loading 15 g 5 g 15 g 5 g
    Sample Throughput 2
    Pressure Range Up to 1 bar -isotherm measurement Ambient -dynamic gas flow
    Air Bath Temperature Control 150°C
    Temperature Range of Sample Pretreatment Up to 400°C
    Material of Sample Crucible Stainless steel or ceramic, or quartz
    Gas or Vapor Water vapor, organic vapor, CO2, corrosive gases
      Options
    Circulating Bath Thermostat -20°C-150°C
    Additional Pressure Sensor 10 torr/1 torr/0.1 torr/Customized scale
    Multi-gas ports Four gas inlet ports
    High Pressure Option 10 bar

 

Lattice Series

INTRODUCTION

  • The Lattice Series redefines benchtop X-ray diffraction by combining high-power performance with compact design. Equipped with a powerful 600 W (Lattice Mini) or 1600 W X-ray source and a high-efficiency, direct-read 2D photon detector, the Lattice Series delivers exceptional data intensity and accuracy—making it ideal for demanding analytical environments.
  • Available in three configurations—Lattice Mini, Lattice Basic, and Lattice Pro—this series accommodates a wide range of technical and budgetary needs, from simple phase identification to complex in-situ studies. All models offer excellent signal-to-noise ratio and fast scan speeds, providing lab-grade data from a desktop system.
  • Whether you're analyzing complex powders, crystalline materials, or conducting highthroughput measurements, the Lattice Series provides lab-grade results with speed, power, and precision—all in a desktop footprint.
  • Lattice Series Instrument

MODEL SERIES

  • The Lattice Mini is the ideal entry point for high-quality X-ray diffraction. Designed for users who need reliable phase identification and material characterization in a truly space-saving format, the Lattice Mini delivers powerful performance in a compact, affordable package.
  • Ideal for:
  • • University and teaching laboratories
    • Small research groups
    • Routine QA/QC in ceramics, metals, and minerals
    • Rapid phase screening and basic material studies
  • The Lattice Basic is designed for laboratories that require dependable, high-throughput diffraction without the complexity of advanced custom configurations. With high angular resolution and a direct-read 2D photon detector, the Lattice Basic delivers fast, accurate results across a wide range of powder samples. It’s an excellent choice for users who prioritize precision, speed, and reliability—at an efficient price point.
  • Ideal for:
  • • QA/QC labs
    • Materials characterization
    • Educational and institutional research
    • Cement, ceramics, metals, and pharmaceuticals
  • The Lattice Pro is built for the most demanding applications. Featuring Theta–Theta geometry for enhanced sample stability and accessory support, it enables precise, high-performance analysis for advanced materials, coatings, and stress testing.
  • Ideal for:
  • • Advanced R&D environments
    • Dynamic experiments
    • Residual stress analysis
    • Film, coating, and thin-layer characterization
    • Battery and energy materials research

KEY FEATURES

  • • High-Power X-ray Source
  • Choose between 600 W or 1600 W configurations for high-intensity data collection and rapid scanning.
  • • 2D Photon Direct-Read Detector
  • A 256 × 256 pixel array captures sharp, high-resolution diffraction patterns with an excellent signal-to-noise ratio.
  • • Exceptional Angular Accuracy
  • Achieve step sizes as small as ±0.01° 2θ and ensure a consistent peak matching with standard reference materials.
  • • Flexible Goniometer Options
  • Theta–2Theta geometry for standard analysis (Mini & Basic) or Theta–Theta for enhanced sample stability (Pro).
  • • Fast, Reliable Scanning
  • Obtain full-spectrum data in minutes—ideal for routine QA and high-throughput labs.
  • • Compact Benchtop Design
  • Fits seamlessly into modern lab environments without sacrificing performance or requiring floor space.
  • • Expandable Functionality (Lattice Pro)
  • Supports advanced modules for residual stress testing, high-temperature stages, in-situ battery studies, and thin film analysis.
  • • User-Friendly Operation
  • Intuitive software and streamlined hardware design simplify training and daily use.

PERFORMANCE EXAMPLES

  • Miller Indices Theoretical Peak Measured Peak Difference
    Position Position
    012 25.579 25.577 0.0020
    104 35.153 35.15 0.0030
    116 57.497 57.497 0.0000
    1010 76.871 76.872 0.0010
    0210 88.997 88.996 -0.0010
    0114 8116.612 116.61 -0.0020
  • Comparison of Theoretical Peak Positions and Measured Peak Positions for Corundum Standard Sample
  • Instrument Repeatability Measurement
  • XRD Spectrum of Ternary Materials Black represents regular measurement mode data, and blue represents fluorescence-free mode data.
  • Test Data for Corundum Powder (10°/min)
  • Graphitization Degree Measurement
  • Measurement Spectrum for Silicon Nitride Ceramic
  • Reflective In-Situ Battery Measurements

TECHNICAL PARAMETERS

  • Model Lattice Mini Lattice Basic Lattice Pro
    X-ray tube 600 W 1600 W
    X-ray tube target material Standard Cu target, Co target is optional
    Theodolite Theta / 2theta geometry, the radius of the theodolite is 158 mm Theta / 2theta geometry, the radius of the theodolite is 170 mm Theta / theta geometry, the radius of the theodolite is 170 mm
    Maximum scanning range -3 - 156°
    Theta Minimum step size ±0.01°
    Detector Photon direct-read two-dimensional array detector
    Detector energy resolution 0.2
    Volume and Weight L 25.6 in (650 mm) × W 19.7 in (500 mm) × H 15.8 in (400 mm), 132 lbs (60 kg) L 35.5 in (900 mm) × W 26.8 in (680 mm) × H 21.7 in (500 mm), 220 lbs (100 kg)
    Sample stage Standard chip stage
    Options N/A Five-bit injector; In situ battery test accessories; SFive-bit injector; In situ battery test accessories; High temperature sample station: can be customized according to customer requirements, e.g., RT-600°C/RT- 1000°C; Residual stress measuring fixture (can be customized); Film sample stage: Size: 2.4 in (60mm) × 2.4 in (60mm) (can be customized)

AMI-Sync Series

INTRODUCTION

  • The AMI-Sync Series is a fully automated, high-performance line of gas physisorption analyzers designed for rapid and accurate surface area and pore size characterization of porous and non-porous materials. Whether analyzing catalysts, zeolites, MOFs, or advanced battery materials, the AMI-Sync Series delivers robust vacuum-volumetric measurement systems backed by intuitive software and comprehensive support for both standard and advanced adsorption techniques.
  • Available in flexible 1-, 2-, or 4-station configurations, the AMI-Sync Series features a common P₀ measuring transducer and supports simultaneous saturation vapor pressure measurements. Each unit is built for high-throughput performance, with options for a dedicated pressure transducer per station to maximize speed, or a shared sensor setup for cost efficiency. A single large-volume dewar supports multiple stations simultaneously, offering an ideal solution for space-conscious laboratories with demanding workloads.
  • AMI-Sync 400 Series Instrument

KEY FEATURES

  • Customizable Configuration for Throughput Analysis Needs
  • The AMI-Sync series offers a scalable solution with up to four high-resolution measurement stations for precise pore size and surface area analysis. For increased throughput, additional instruments can be linked via LAN, expanding to 12 analysis ports with centralized and remote-control capabilities.
  • Extended Analysis Duration
  • AMI-Sync analyzers are equipped with large 3-liter Dewar flasks that allow over 90 hours of continuous analysis. The system supports live refilling during experiments, ensuring uninterrupted data collection during long runs and complex isotherm acquisitions.
  • High Sensitivity & Reproducibility
  • The AMI-Sync Series delivers precise and reliable surface area and porosity data, with a BET detection limit as low as 0.1 m² absolute and 0.01 m²/g specific. It offers outstanding reproducibility—within 1% on standard reference materials like BAM P115—ensuring confidence in repeated analyses.
  • Precision-Engineered Hardware
  • Built with stainless steel and vacuum-brazed manifolds, the system features ultra-durable bellows valves rated for over 5 million cycles. Temperature control maintains ±0.05 °C stability, while 32-bit pressure sensors provide high-resolution, accurate data capture.
  • Cryo TuneTM (Optional Feature)
  • Unlock advanced temperature control with Cryo TuneTM, an optional low-temperature cold bath system designed for precision adsorption studies. Fully integrated with Sync software, Cryo TuneTM allows users to effortlessly conduct adsorption isotherm measurements across a range of temperatures.
  • Optimized Manifold Contamination Control
  • A two-step filtration system protects the manifold from particulates reducing contamination risks and extending instrument life. Combined with stainless steel construction and high-cycle bellows valves, the system ensures clean, reliable operation even in high-throughput environments.
  • Compact & Lab-Ready
  • All models share a compact footprint of 51 ×53 × 93 cm, making them ideal for space-conscious labs. Despite their compact size, Sync analyzers are fully equipped for both research-grade and industrial applications, offering power, durability, and precision in one system.

SOFTWARE

  • Sync Series analyzers are driven by a multilingual, user-friendly software suite that supports:
  • • Control of up to 8 instruments from a single PC
    • Built-in method libraries
    for fast setup and repeatability
    • Customizable analysis profiles with real-time system feedback
    • Automated leak detection and guided maintenance routines
    • CFR 21 Part 11-ready
    sample tracking, including ID and method history
    • Visual instrument status interface for monitoring analysis in progress
  • Additional capabilities include void volume correction, supercritical P0 handling, temperature control with CryoTune, and compatibility with up to 6 gases per station.
  • Isotherm
  • 3-stage evacuation to prevent sample fluidization
  • Main software screen
  • Interactive software screen
  • Data Analysis Capabilities:
  • Isothermal absorption and desorption curve
    BET specific surface area (single and multiple point)
    Langmuir surface area
    Statistical thickness surface area. (STSA)
  • HK pore size analysis
    SF pore size analysis
    NLDFT pore size distribution
    Total pore volume
    t-plot analysis

SPECIFICATIONS

Model AMI-Sync
Specific Model 110 210 220 420 440
Analysis Ports 1 2 2 4 4
p0 Transducer 1 1 1 1 1
Analysis Pressure Transducer 1 1 2 2 4
Surface Area ≥ 0.0005 m2/g
Pore Size 0.35-500 nm
Pore Volume ≥ 0.0001 cm3 /g
Pump Mechanical pump(minimal 5.0×10-4 mmHg)
p/p0 10-5-0.998
Accuracy PTs 1000 mmHg(+/-0.2%F.S.)
Adsorbates N2,CO2,Ar,Kr,H2,O2,CO,NH3,CH4
Dimensions 51 × 53 ×93 cm (16.1 x 20.8 x 36.6 inches) All same dimensional size
Weight 45 kg | 99 pounds (maximum depending on configuration)

RuboSORP MPA Series

INTRODUCTION

  • The RuboSORP MPA is a cutting-edge, high-pressure volumetric adsorption instrument designed for accurate and reliable pressure-composition-temperature (PCT) measurements up to 200 bar. Engineered for precision and efficiency, it provides deep insights into gas adsorption behavior, enabling researchers to analyze surface properties, storage capacity, and cycling kinetics with unmatched accuracy.
  • With its versatile capabilities, the RuboSORP MPA is the ideal solution for:
  • ✔ Hydrogen storage material evaluation
    ✔ Shale gas and coal bed methane studies
    ✔ CO₂ capture and sequestration research
    ✔ Air purification and adsorbent performance testing
  • Built for precision, reliability, and multi-sample efficiency, the RuboSORP MPA empowers scientists and researchers in developing next-generation energy and environmental solutions. Advance your research with the RuboSORP MPA—where accuracy meets innovation.
  • High-Pressure Volumetric Sorption:
  • PCT and other gas adsorption/ desorption isotherms
    Cycling PCT isotherm measurements
    Adsorption kinetics
    Cycling kinetic measurements
    Dead volume measurements
  • RuboSORP MPA Multiport High Pressure Sorption Analyzer
 

KEY FEATURES

  • Oven temperature control
  • Oven temperature control system with a range of RT-50°C and a temperature accuracy of ±0.1°C, designed to mitigate the impact of ambient.
  • Additional volume chamber
  • Multiple standard volume chambers are available (100 ml, 200 ml, 500 ml, 1000 ml) for the acquisition of more precise kinetic data.
  • Diverse Sensor Configurations
  • The MPA system allows multiple stations to share sensors while also supporting the complete independence of up to three stations, offering both cost- effectiveness and high efficiency.
  • Safety design
  • The MPA features over- temperature and over- pressure alarms with automatic shutdown in alarm situations.

SOFTWARE

  • RuboSORP MPA software interface
  • The MPA is equipped with a user-friendly software interface that allows programming of all measurement parameters. The system calculates the amount of gas adsorbed by the sample in real time. Adsorption data is displayed online and fitted using appropriate isotherm models.
  • The MPA allows for testing up to three sample materials across a wide range of pressures and temperatures with high efficiency. The instrument is fully automated and intuitive, requiring no user supervision during operation.

APPLICATIONS

  • PCT curve of LaNi5 at 40°C
  • Cyclic testing of activated carbon at 40°C
  • Isotherms of activated carbon at 40°C
  • Typical Materials: Solid-State H2 Storage

SPECIFICATIONS

Analysis Ports 1/2/3
Pretreatment In-situ
Pressure range Vacuum- 200 bar
Pressure sensor configuration Optional ranges: 0-10 bar, 0-50 bar, 0-100 bar, 0-200 bar; Accuracy: 0.01% FS.
Gases Non-corrosive gases: H2, CO2, CH4, N2, etc.
Temperature range RT - 500°C;
-196°C to 0°C (Option); -10°C to 95°C(Option)
Custom higher temperatures: Available upon request.
Sample tube volume Standard: 10 ml (Other volume is optional)
Sample tube temperature Detection accuracy: ±0.01°C
Control accuracy: 0.1°C
Oven temperature control Air bath, 30~50°C.
Additional volume chamber Up to 2 chambers, multiple volumes available (Option)
Vacuum system Mechanical pump + turbo molecular pump (minimal 10-8 Pa, Option)
Model 1S 2S 2P 3S 3P
Number of pressure sensors including manifold 2 4 2 5 2
Available Options BET Capabilities
*Additional pressure sensors can be added per station

 

BTsorb 100 Series

INTRODUCTION

  • The BTsorb 100 series is a new line of cost-effective material characterization instruments designed for breakthrough curve testing, competitive adsorption, and mass transfer kinetics analysis. It is a comprehensive, versatile, and precise dynamic sorption analyzer.
  • • Accurate: Trusted results you can rely on.
    • Accessible: Cost-effective without compromise.
    • Advanced: Engineered for high-performance.
  • BTsorb 100 Series Breakthrough Curve and Mass Transfer Analyzer
  • BTsorb 100 series

FEATURE

CAPABILITIES

  • The BTsorb 100 offers 5 modes for breakthrough curve and competitive adsorption analysis, enabling dynamic evaluation of gas or gas/vapor mixture separation. It also includes 2 dedicated modes for diffusion studies using chromatography and the zero-length column method.
  • 5 Modes for Breakthrough Curve & Competitive Adsorption:
  • 2 Modes for Diffusion Coefficients:

SOFTWARE

  • BTManager is a user-friendly software platform that enables precise control of all experimental processes, while automatically recording data and calculating test results. It offers a range of features designed to simplify and support user operation.
  • √ In addition to standard procedures, the software allows full customization of experimental steps to meet specific testing requirements.
    √ All experimental steps and data are automatically recorded, making it easy for users to review and analyze results.
    √ As part of a fully automated system, BTManager enables conditional controls based on time, temperature, pressure, and detector signals—ensuring precise execution, repeatability, and accuracy.
    √ Includes advanced features such as blank adsorption correction, true flow calibration, abnormal data detection, and TCD signal calibration—minimizing environmental and system influences for highly reliable results.
  • Control interface
  • Data analysis interface
  • Experimental parameter setting interface
  • System configuration interface

APPLICATION

  • The BTsorb 100 series is primarily used to evaluate the adsorption and separation properties of porous materials. Common samples include MOFs, zeolites, silica gels, activated carbons, and other functional adsorbents. These materials are widely applied in processes such as gas separation purification, and CO2 capture, The BTsorb 100 meets the broad range of dynamic sorption analysis needs for these applications.

SPECIFICATIONS

  • BTSorb 100 Series Breakthrough Curve and Mass Transfer Analyzer Breakthrough Curve Analyzer
    Model 100S Pro 100SLP Pro 100SMP Pro 100S 100SLP 100SMP 100SHP
    Breakthrough Curve
    Competitive Adsorption
    Adsorption Isotherm
    Cyclic Stability V V V V V V V
    Temperature Swing Adsorption
    Pressure Swing Adsorption / /
    Diffusion Coefficient / / / /
    Pressure Range Atmospheric Atm -10 bar Atm -40 bar Atmospheric Atm -10 bar Atm -40 bar Atm -100 bar
    MFCs 4 MFCs (1 carrier + 3 adsorbate)
    Gas Inlets Standard 4 ports(expandable with MGC-option)
    Vapor Dosing Up to 2 vapor generators(temperature control -10°C to 90°C)
    Temperature Control Standard:
    Heating module: Ambient - 400 °C; Circulating water bath: -10 - 90°C; Option: Heating furnace: Ambient -1000°C; (Continuous temperature control from -10°C to 400°C can be achieved through the combined use of heating module and circulating water bath)
    Standard:
    Heating module: Ambient - 400 °C; Option: Circulating water bath: -10 - 90°C; Heating furnace: Ambient - 1000°C; (Continuous temperature control from -10°C to 400°C can be achieved through the combined use of heating module and circulating water bath)
    Detector Standard: High precision Thermal Conductivity Detector (TCD)
    Option: Mass spectrometer (100amu - 200/300 amu optional)
    Column Standard: 1 ml and 4 ml 316SS
    Option:1ml and 4ml quartz; column for ZLC
    Corrosion Resistance Standard: Corrosion-resistant TCD
    Option: Sulfur-resistant corrosion protection gas path upgrade,
    passivation treatment of fittings and tubing is mainly used for sulfur - containing gases (such as H₂S) and scenarios with high - concentration of corrosive gases.
    Air Compressor Used to drive pneumatic valves (option)
    Appearance Parameters L 31.9 in (810 mm) × W 31.1 in (790 mm) × H 34.6 in (880 mm), 330 lbs (150 kg)