Evaluation of headspace solid-phase microextraction for the analysis of volatile carbonyl compounds in spirits and alcoholic beverages

A method was developed for the determination of C 1–C 6 carbonyl compounds in alcoholic solutions using pentafluorobenzoxymation followed by headspace sampling solid-phase microextraction and subsequent analysis by GC with electron-capture detection. Experimental conditions—alcohol content, exposure...

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Bibliographic Details
Published in:Journal of Chromatography A 2003-01, Vol.984 (1), p.89-96
Main Authors: Wardencki, Waldemar, Sowiński, Piotr, Curyło, Janusz
Format: Article
Language:English
Subjects:
Aldehydes
Beverages - analysis
Biological and medical sciences
Brandies, spirituous liquors
Calibration
Carbonyl compounds
Chromatography, Gas - methods
Ethanol
Fermented food industries
Food industries
Fundamental and applied biological sciences. Psychology
Volatilization
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Summary:A method was developed for the determination of C 1–C 6 carbonyl compounds in alcoholic solutions using pentafluorobenzoxymation followed by headspace sampling solid-phase microextraction and subsequent analysis by GC with electron-capture detection. Experimental conditions—alcohol content, exposure time, temperature and sample agitation were optimised. In this method, a spirit or distilled alcoholic beverage is first adjusted to 20% (v/v) alcohol. Detection limits for particular aldehydes and ketone varied from 0.05 to 0.5 μg/l and relative standard deviation was between 2.3 and 20%. Generally, the method showed good linearity for the tested concentration range 8 μg/l–0.32 mg/l with regression coefficients ranging between 0.9434 and 0.9983. The method was applied to the analysis of real alcoholic beverages (vodkas).
ISSN:0021-9673
DOI:10.1016/S0021-9673(02)01741-7