IGA- 002 gravimetric gas sorption analyzer

The IGA-002 is a high resolution vapor sorption analyzer for precisely characterizing vapor-solid interactions. Compatible with an extensive range of vapors, the IGA-002 also offers the full gas sorption capability of the IGA-001, measuring changes in sample mass as a function of temperature and pressure. The unique IGA method analyzes real time gravimetric data to determine kinetic parameters and simultaneously predict sorption equilibrium.

BENEFITS OF IGA-002

• Unrivalled measurement precision, accuracy and repeatability
• Unparalled vapor pressure control and measurement resolution
• Fast and accurate analysis of equilibria and kinetics using the IGA method

THE IGA METHOD

Hiden Isochema’s unique IGA method is applied independently to every step in a gravimetric sorption measurement. At each step, the pressure and temperature are actively regulated, with resultant changes in sample weight continuously recorded.

The kinetic weight data is analyzed in real-time, and the trend toward equilibrium is predicted and displayed on screen. Equilibration criteria are applied to objectively determine the period allowed before the measurement moves on to the next pressure or temperature value. Each equilibrium point is plotted on an isotherm or isobar, and the full raw data is also recorded. 

The IGA method therefore allows consistent analysis with optimum measurement accuracy and faster overall process times. 

APPLICATIONS

IGA analyzers are widely regarded as the benchmark for gravimetric sorption analyzers and are used in an extensive range of applications:

• Moisture and organic vapor sorption
• Diffusion coefficient determination
• Thermodynamic and kinetic studies
• Gas sorption capacity determination
• IGA instruments are used in both academic and industrial laboratories globally and are continuously producing high precision reproducible data. The IGA’s reputation is underpinned by publication of data in over 700 peer reviewed papers, including many in high profile journals.

APPLICATION DATA

• Real Time Kinetic Analysis

Kinetic analysis of ethanol sorption and desorption. The predicted path to equilibrium is shown by the blue line.

• Long Term Stability

Kinetic analysis of water sorption on a commercial zeolite at 0.02 mbar. The real time measurement highlights the intrinsic long term stability and continuous data recording

• Vapor Isotherms at Variable Temperatures

Multiple vapor isotherms at a range of temperatures from 20 ⁰C – 45 ⁰C with intervals of 2.5 ⁰C