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.
BENEFITS OF XEMIS
- Widest controllable pressure range of any gravimetric sorption analyzer: active pressure regulation over 7 orders of magnitude
- Unique Exosensing Technology for operation with aggressive species
- Optimized performance for sample sizes from 1 mg to 5 g
APPLICATIONS
Typical applications include:
- VOC filtration
- Thermochemical energy storage
- Toxic gas storage and separation
APPLICATION DATA
-
Kinetics of hydrogen absorption by palladium at 303 K and 40 mbar
-
Water adsorption on a Zeolite powder
-
DMF adsorption by a Metal-organic framework
-
Nitrogen, carbon dioxide and sulpher dioxide adsorption isotherms on a MOF across a broad pressure range. Data reproduced with permission from John Wiley and Sons.
-
Methane adsorption by a shale at high temperature and pressure
-
Sulfur dioxide adsorption by a metal organic framework (NOTT-300)
-
Excess Hydrogen uptake for a 22mg carbon nanotube. Data reproduced with permission of The Royal Society of Chemistry
Blog
News & Events
Scientific library
Project
Video
Review Xemis-002 Next Generation Pure Gas and Vapor Sorption Analyzer
There are no reviews yet.