ქიმიის ტერმინთა განმარტებითი ლექსიკონი

Method of analysis, in which a small aliquot of the gas phase in contact with the sample in a closed
container is withdrawn for analysis.

Note 1: At equilibrium the analyte concentration in the gas phase is related to the sample concentration
by a partition constant.
Note 2: The sample is enclosed in a thermostatted vessel.