Adsorption analysis

https://w3id.org/geochem/1.0/analyticalmethod/adsorptionanalysis

label Adsorption analysis
alt label
ADSORPTION
notation ADS
broader
Physical property measurement original
definition The gas adsorption technique may used to measure the specific surface area and pore size distribution of powdered or solid materials. The dry sample is usually evacuated of all gas and cooled to a temperature of 77K, the temperature of liquid nitrogen. At this temperature inert gases such as nitrogen, argon and krypton will physically adsorb on the surface of the sample. This adsorption process can be considered to be a reversible condensation or layering of molecules on the sample surface during which heat is evolved. Nitrogen gas is ideal for measuring surface area and pore size distribution. (http://www.cyto.purdue.edu/cdroms/cyto2/6/coulter/ss000107.htm)
source
http://www.cyto.purdue.edu/cdroms/cyto2/6/coulter/ss000107.htm
Geochemistry of Rocks of the Oceans and Continents (GEOROC) original
type
Resource original
Concept original
in scheme Analytical methods for geochemistry and cosmochemistry original
is defined by Analytical methods for geochemistry and cosmochemistry original
see also Analytical methods for geochemistry and cosmochemistry original