IPC Subgroup
G01N 30/42 using counter-current
Introduced: January 1985
Last revised: January 2006
Full Title
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography > Column chromatography > Conditioning of the fluid carrier; Flow patterns > Flow patterns > using counter-current
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES