Concentration Technique and Gas Chromatography Mass Spectrometry
Wang, T.T.
Ann Arbor, Mich.: University Microfilms International, 1981
The objective of this study was to develop and
standardize an experimental method for the analysis of trace
volatile organic compounds in coffee. This new technique involves
headspace sampling, heart cutting, collection and concentration
of the volatiles on a porous polymer (Tenax-GC), followed
by sensory evaluation and two dimensional GC. A 0.2% Carbowax
1500 coated on 80/100 Carbopack C packed column was employed
for the initial separation, while a chemically bonded phase
fused silica column served as the analytical column. A number
of aroma related organic volatile compounds in coffee have
been separated and identified in this study.