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Answer Posted / ravi.a
gc and gc-hs both are used for residual solvents in by gc
we measured for volatile solvents in this direct inject the
sample into the column and in gc-hs is also used for
volatile sovents in this we apply the pressure to inject
the solvent as vapour into the column
and both r used for non volatile solvents there are
converted into voltile solvents
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