ქიმიის ტერმინთა განმარტებითი ლექსიკონი

Continuous removal of headspace above a sample by a flow of inert gas over or through the sample.
Sample vapours are typically transferred to a sorbent trap or cryogenic trap for collection

Note: Purge-and-trap is a version of dynamic headspace analysis in which volatile compounds are
purged from solution by a continuous stream of gas bubbles and transported through the headspace to
a sorbent or cryogenic trap for collection.