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- Title
Novel technique for the analysis of volatiles in aqueous and nonaqueous systems.
- Authors
Legendre, M.; Fisher, G.; Schuller, W.; Dupuy, H.; Rayner, E.
- Abstract
A simple, efficient, external inlet assembly is described for analyzing volatile components in raw and processed foods by direct gas chromatography and mass spectrometry. The device comprises three sections: a sample inlet, a condenser, and a six-port rotary valve. The versatility and effectiveness of this assembly is demonstrated by the analysis and identification of volatiles from diverse food products as salad oils, vinegar, and corn-soy food blends. The procedure is rapid, efficient, and offers the following desirable features: it is compatible with all commonly used chromatographs and can accomodate samples of different size; sample volatiles are obtained without use of prior enrichment techniques, at ambient or elevated temperatures; uniform heating enhances volatiles elution, thereby improving sensitivity; moisture and air are removed to facilitate mass spectral analysis; the closed nature of the system minimizes loss of low molecular weight volatiles during elution, thus producing a highly reliable pro-file of volatiles.
- Publication
Journal of the American Oil Chemists' Society (JAOCS), 1979, Vol 56, Issue 5, p552
- ISSN
0003-021X
- Publication type
Article
- DOI
10.1007/BF02660231