IMI-FLOW

Dynamic Gas Sorption Analyzer

Manometric sorption analyzer, with powerful flowing mode operation for gas mixtures

Combined manometric and quantitative TPD analysis
Advanced software with complete user programmability
Proven reliability, accuracy and repeatability

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Key features

Automatic switching between manometric and flowing mode operation
Optimized for small sample sizes under all temperature and pressure conditions
Full integration of mass spectrometers from Hiden’s quadrupole range

Applications

Gas separation and purification
Gas storage
Nanoporous materials
Energy and environment

Measurement types

Thermodynamic and kinetic studies
Pressure-Composition-Temperature (PCT) measurements
Temperature Programmed Desorption (TPD)

Introduction

The IMI-FLOW combines the manometric gas sorption capabilities of all IMI analyzers with flowing mode operation and integrated mass spectrometry. Manometric mode offers high accuracy isotherm determination to 200 bar, while the flowing mode provides complete control of pressure, composition and flow rate. Integrated mass spectrometry allows downstream gas analysis for TPD and advanced methods.

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Specifications

Temperature

Integrated heater rangeRT to 500 °C
Waterbath temeprature range (optional)0 °C – 80 °C
Sample temperature accuracy± 0.1 °C
Temperature resolution0.01 °C
Regulation accuracy± 0.1 °C
Cabinet regulation accuracy± 0.1 °C
Location of sample temperature measurementAt the sample position

Pressure

Maximum operating pressure60 bar (optionally 200 bar)
Typical accuracy± 0.04 %
Transducer ranges2, 10, 100 mbar
1, 10, 20, 60, 200 bar
Base vacuum< 10⁻⁶ mbar
Sorption measurement resolution < 1 µmol

System Construction

Wetted componentsAll metal
ManifoldsStainless steel (316L)
Valve diaphragmsElgiloy
Pressure transducer diaphragmsHastelloy C276

Sample Reactors

Maximum bulk sample volume~1 cm³
~10 cm³ (optional large capacity reactor)
Construction materialStainless steel (316L)
Internal sample holderGold-platted copper (stainless steel available on request)
Reactor sealCajon VCR
Overpressure protectionPermanent (electron beam welded nickel foil burst disc)

Dynamic Gas Flow

Control methodthermal mass flow control
Number of gas inletsup to 8
Typical switching time1 – 3 seconds for specified composition
Maximum flow rate1000 ml/min

Mass Spectrometer

Coupling methodHeated stainless steel or Quartz Inert Capillary (QIC) inlet
Atomic Mass range1 – 200 AMU (standard)
1 – 50 AMU or 1 – 300 AMU (optional)
DetectorDual Faraday/electron multiplier

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Resources
Explore our collection of application notes and technical resources that showcase how our instruments are used in real-world research.
View resources
get in touch
Speak with our sorption analysis experts. Get tailored guidance on instrumentation, applications, and analytical solutions.
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IMI-FLOW

Dynamic Gas Sorption Analyzer

Key features

Applications

Measurement types

Introduction

Specifications

Temperature

Pressure

System Construction

Sample Reactors

Dynamic Gas Flow

Mass Spectrometer

Related instruments

IMI-HTP

IMI-GEO

IMI-PSI

Resources

Explore our collection of application notes and technical resources that showcase how our instruments are used in real-world research.

get in touch

Speak with our sorption analysis experts. Get tailored guidance on instrumentation, applications, and analytical solutions.