Quantitative Chemical Analysis of Volatile Compounds via Headspace-Solid Phase Microextraction (HS-SPME) Coupled with Inverse Gas Chromatography (IGC)
Abstract(#br)The compositions of volatile compounds in headspace (HS) analyzed by a solid phase microextraction (SPME) sampling method usually differ from true compositions mainly because the partition coefficients for these compounds between headspace and a SPME fiber are not equal. In this paper we report an analytical strategy to more accurately quantify relative compositions of selected hydrocarbons present in gasoline residue by employing inverse gas chromatography (IGC) coupled with a HS-SPME sampling method.