G01N30/00	Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography (G01N 3/00-G01N 29/00; take precedence);;
	Note(s) In this group, the following term is used with the meaning indicated:[4] "conditioning" means the adjustment or control of environmental parameters, e.g. temperature or pressure.