R e s t e k
DynamicHeadspaceSampling–Purge&
Trap
u
Purge&Trap increases sensitivity compared to
other introductionmethods
u
However, purging analytes from the sample to the
trap, thendesorbing the trap, can result inbroad
peaks for themost volatile compounds.
u
Columndesignneeds to take into account the
early eluting peak shapes and isomeric pairs (ex.
Chlorotoluenes, dichlorobenzenes).
