J. Agric. Food Chem. 1997, 45, 3940−3943
3940
Analysis of Highly Volatile Components of Foods by Off-Line SFE/GC Elena Iba´n˜ez, Sara Lo´pez-Sebastia´n, Elena Ramos, Javier Tabera, and Guillermo Reglero* Instituto de Fermentaciones Industriales, CSIC, c/ Juan de la Cierva 3, 28006 Madrid, Spain
A sample collection method is proposed for off-line coupling supercritical fluid extraction/gas chromatography (SFE/GC) through a programmed temperature vaporizer (PTV) and using a variable restrictor. Experiments were carried out to obtain the most favorable conditions for the analysis of highly volatile components of foods. Average recoveries of ∼50% and coefficients of variation of absolute areas
