Consider a standard vial for use with commercial HSGC autosamplers
which is partially filled with a binary liquid mixture of
volatile organic compounds (VOCs) 1 and 2 and equilibrated with
the vapor phase which contains besides the VOCs also nitrogen
as a HSGC working gas. The headspace analysis is generally based
on the determination of chromatographic responses (peak areas)
A1 and A2 corresponding proportionally to the equilibriumcontents
(mole fractions) yi of volatile components in the vapor phase