IGA-003-MC

Binary Gas Sorption Analyzer

Gravimetric sorption analyzer for binary gas sorption analysis using the IMB method

  • Unique IMB method used to measure multipoint binary gas adsorption isotherms
  • Single component and binary equilibria measured in one experiment
  • Only a few grams of sample required
  • Precise control of pressure, composition and temperature conditions
  • Fully automated operation, including integrated mass flow and MS calibration routines
  • Dynamic mode gas delivery with gas flow calibration
  • Dedicated sample reactor with combi bath / heater for sample thermostatting
  • Optimized sampling interface with a close-coupled Hiden mass spectrometer
  • Recommended sample size is 2-3 grams for operation in the pressure range 0.5 bar to 10 bar
  • Unique IMB method for partial uptake determination

In the IMB method, a controlled gas mixture flows over a sample suspended from the IGA microbalance and the gas composition at the outlet is determined using a mass spectrometer (MS). Inlet flow rates and outlet gas composition are then combined with in-situ gravimetric data to calculate the partial uptake of each gas – as well as total uptake – as a function of molar fraction. Full time-dependent data is recorded and analyzed to ensure steady state conditions are achieved at each step of the measurement. The IMB method is unique to Hiden Isochema’s IGA-003-MC binary gas sorption analyzer.