I'm studying gas-chromatography but I don't undertand one crucial point.
When I'm in liquid chromatography if I use a polar compound (-SiOH) as stationary phase the most polar solute will eluite first.
When I use some apolar phase, the less polar solte will eluite first.
I wonder if this difference will occour also in GC...or is the eluition order always defined by the relative vapor pressure (volatility) of the different solutes
i.e: the most volatile solute will always elute first