Why are the following procedures invalid?
(a) To minimize the time required for an analysis, the temperature of a GC instrument is increased above the boiling points of the components in the mixture.
(b) To increase the retention times and thus maximize the separation between peaks, the gas flow is adjusted to a very low value.

Question

Quizplus · Accepted Answer

The Answer is (a) The gaseous compounds will not reach a liquid-vapor equilibrium with the liquid adsor- bent on the inert packing of the column.
(b) The peaks would becomevery broad by diffusion so tthat no advantage is gained.

Why Are the Following Procedures Invalid