Micro 300Physisorption Analyzer for BET Surface Area and Micropore Analysis
● Available in multiple models to support diverse lab-throughput needs.
● 3 analysis stations with high-vacuum pump and up to 3 pressure sensors per station.
● Equipped with 3 in-situ degassing ports and 1 cold trap.
Product Overview of the Matrix 1000 Gas Sorption Analyzer
The AMI-Micro 300 Series Series is a high-precision physisorption analyzer designed for BET surface area, pore size, and micropore analysis of porous materials. With three independently operating analysis ports, the Micro 300 supports simultaneous gas adsorption testing with different adsorbate gases, making it well suited for MOFs, molecular sieves, catalysts, activated carbon, and other microporous materials.
The Micro 300 B and C models are equipped with a 1 torr or 0.1 torr high-sensitivity pressure transducers and a turbo molecular pump with an ultimate pressure of 10-8 Pa, ensuring precise measurements of microporous structures. Furthermore, all three analysis stations support in-situ sample preparation, minimizing the risk of contamination. This instrument is particularly well-suited for the characterization of microporous materials, including MOFs, molecular sieves, catalysts, activated carbon, and other porous substances.
Physisorption Analyzer Features
Low Dead-Volume Module Design for Accurate Gas Adsorption Analysis
The internal gas path design of the instrument adopts a unique integrated metal module design,
which not only reduces the internal dead volume space but also lowers the system leakage rate.
Saturated Vapor Pressure P₀ Measurement for Accurate P/P₀ Control
An independent P0 pressure transducer is configured at 133 kPa for P0 value testing,
enabling real-time P/P0 measurement for more accurate and reliable test data.
Alternatively, an atmospheric pressure input method can be used to determine P0.
Independent Analysis Ports for Simultaneous Physisorption Experiments
With independent analysis ports, the system employs a unique vacuum control logic that allows
each station to operate without disruption, even when using a single mechanical pump or pump group.
This enables simultaneous, independent experiments, meeting diverse adsorbent testing needs while
ensuring high efficiency.
Thermal Stabilization for Reliable Surface Area and Pore Size Analysis
A core rod in the sample tube reduces deadvolume and stabilizes the cold free space coefficient,
while an iso-thermal jacket maintains a constant thermal profile along the tube. Additionally,
automatic helium correction ensures precise calibration for any powder or particulate material,
minimizing temperature-related deviations during analysis.
High-Accuracy Pressure Transducers for Micropore Analysis
Equipped with 1000 torr pressure transducers, the Meso Series enables precise physical adsorption
analysis, achieving a partial pressure (P/P0) as low as 10-2 for nitrogen
(N2) at 77 K.
Manifold Contamination Control for Reliable Adsorption Measurements
This system features a multi-channel, adjustable, and parallel vacuum design with segmented vacuum control.
This setup effectively prevents samples from being drawn up into the analyzer, therefore preventing manifold contamination.
Liquid Nitrogen Dewar for Stable Adsorption Testing
The use of 1 L Dewar flasks in conjunction with a sealed cover ensures a stable thermal profile along the entire
length of both the sample tubes and P0 tubes throughout the testing process.
In-Situ Sample Preparation and Degassing Ports
Equipped with four in-situ degassing ports, enabling simultaneous degassing and analysis. Each port offers
independent temperature control from ambient to 400°C, ensuring precise sample preparation.
PAS Software for Gas Adsorption and BET Analysis
PAS Software is an intelligent solution for operation control, data acquisition, calculation, analysis, and report generation on the Windows platform. It communicates with the host via the LAN port and can remotely control multiple instruments simultaneously.
PAS Software adopts a unique intake control method, optimizing pressure in the adsorption and desorption processes through a six-stage setting, which improves testing efficiency
Each adsorption equilibrium process is dynamically displayed on the test interface. Adsorption characteristics ofthe sample can be easily understood.
Changes in pressure and temperature inside the manifold can be directly observed in the test interface,providing convenience for sample testing and instrument maintenance. Current state of analyzer can be intuitively understood with the indicator light and event bar.
A clear and concise report setting interface,
including the following:
✔ Adsorption and desorption isotherms
✔ Single-/Multipoint BET surface area
✔ Langmuir surface area
✔ STSA surface area
✔ Pore size distribution according to BJH
✔ t-plot
✔ Dubinin–Radushkevich
✔ Horvath–Kawazoe
✔ Saito–Foley
Micro 300 Physisorption Analyzer Specifications
| Specific Model | 300A | 300B | 300C |
|---|---|---|---|
| Analysis Ports | 3 | 3 | 3 |
| P0 Transducer | 3 | 3 | 3 |
| Analysis Pressure Transducer | 3 | 5 | 9 |
| Accuracy PTs | Port 1: 1000 torr Port 2: 1000 torr Port 3: 1000 torr | Port 1: 1000 torr, 10 torr, 1(0.1) torr Port 2: 1000 torr Port 3: 1000 torr | Port 1: 1000 torr, 10 torr, 1(0.1) torr Port 2: 1000 torr, 10 torr, 1(0.1) torr Port 3: 1000 torr, 10 torr, 1(0.1) torr |
| Adsorbates | N₂, Ar, Kr, H₂, O₂, CO₂, CO, NH₃, CH₄, etc. | ||
| Pump | 1 mechanical pump (ultimate vacuum 10⁻² Pa) | 1 mechanical pump (ultimate vacuum 10⁻² Pa); 1 turbo molecular pump (ultimate vacuum 10⁻⁸ Pa) | |
| Cold Trap | 1 | ||
| P/P₀ | 10⁻⁴ – 0.998 | 10⁻⁸ – 0.998 | |
| Surface Area | ≥ 0.0005 m²/g, test repeatability: RSD ≤ 1.0% | ||
| Pore Size | 0.35–500 nm, test repeatability: ≤ 0.02 nm | ||
| Pore Volume | ≥ 0.0001 cm³/g | ||
| Degassing Ports | 3 in-situ | ||
| Volume & Weight | L 34.5 in (870 mm) × W 22.5 in (570 mm) × H 35.0 in (890 mm), 176–198 lbs (80–90 kg) | ||
| Power Requirements | 110 or 200–240 VAC, 50/60 Hz, maximum power 300 W | ||
Typical BET, Isotherm, and Pore Size Analysis Results
● The specific surface area test results for iron ore powder are shown in the figure below. As a material with an inherently low specific surface area, the repeatability error in the measurements is only 0.0015 m²/g, demonstrating high testing precision.
● Analysis of pore size distribution of activated carbon materials by NLDFT.
● Analysis of pore size distribution of activated carbon materials by NLDFT
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● Available in multiple models to support diverse lab-throughput needs.
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● Equipped with 3 in-situ degassing ports and 1 cold trap.
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