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TOP-200 Extensible multi-stations gas adsorption analyzer


TOP-200 Extensible multi-stations gas adsorption analyzer

AMI has re-incorporated many of the technical advantages of the adsorption field and launch the TOP-200 Extensible multi-stations gas adsorption analyzer. TOP-200 gas adsorption analyzer is compact and powerful, and can accurately test micropores, mesopores and surface area to study the adsorption behavior of different adsorbates at different temperatures.

TOP series of instruments have a completely new internal structure, enabling the full independence of different analysis stations. At the same time, four analysis stations can complete four different gas adsorption experiments. The four stations can start the experiment separately and complete the experiment independently without waiting for each other.

Hardware and Operation

Specific surface area: >0.0001m2/g

Pore size: 0.35nm - 500nm

Power: 110~220V, 50/60Hz

Vacuum System

Minimum relative pressure: 10-8, some samples are reached 10-9.

Manifold: Multi-optimized design to provide the most suitable dead volume

Flexible vacuum configuration:

Mechanical oil pump is standard. It can be upgraded to an independent turbomolecular pump for each analysis ports.



The analysis results for the top and quick series are included:


  • Isotherm curve
  • BET (Brunauer, Emmett, and Teller) surface area
  • Langmuir surface area
  • t-Plot
  • Alpha-s method
  • The BJH (Barrett, Joyner, and Halenda) method
  • Dollimore-heal adsorption and desorption curve
  • Horvath-Kawazoe (H-K)
  • The MP method
  • DFT
  • Dubinin-Astakhov (D-A)
  • Dubinin-Radushkevich (D-R)
  • Summary reports
  • Custom reports

Calculation model for heat of adsorption


  • Physisorption
  • Gas adsorption
  • Gas sorption
  • Nitrogen sorption
  • Surface characterization
  • Pore analysis
  • Pore size
  • Pore size distribution
  • BET surface area 




Analysis port(s)



p0 Port(s)



Number of micropore analysis stations




N2 , Ar, Kr, H2 , O2 , CO2 , CO, NH3 , CH4 , etc.

Surface Area Range

0.0001 m2/g to unknown upper limit; Measurement accuracy (standard sample) ≤ ± 1.0 %

Pore Size Range

0.35 nm – 500 nm(Options)

Repeatability: ≤ 0.2 nm in mesopore range and ≤ 0.02 nm in micropore range

Minimum Pore Volume

0.0001 cm3/g

Pressure Sensors (Individual sensor systems for each analysis port can be selected)

1000 Torr, 10 Torr(Options) and 1 Torr(Options)  or 0.1 Torr (Options), one extra 1000 Torr for p0 determination

Pressure Sensor Accuracy

± 0.15 % (Full Scale)

Degassing Stations

2 in­situ

4 in­situ

Degassing Temperature

Room temperature to 400 °C (optional 500 °C), accuracy 1 °C

Vacuum System

Standard mechanical oil pump (ultimate vacuum 10­3 Pa), optional turbo molecular pump(ultimate vacuum 10­8 Pa)

Independent vacuum system for each analysis port

√ (Options)

√ (Options)




Temperature Requirements of Environment

15 – 40 °C

Humidity Requirements of Environment

10 % – 90 %

Power Requirements

AC 220 V ± 20 V, 50/60 Hz, maximum power 300 W, current 5 A

Steam absorption


Independent Intake Gas System for Each Analysis port

√ (Options)

√ (Options)