Application of a headspace sorptive extraction method for the analysis of volatile components in South African wines

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dc.contributor.authorWeldegergis B.T.
dc.contributor.authorTredoux A.G.J.
dc.contributor.authorCrouch A.M.
dc.date.accessioned2011-05-15T15:56:51Z
dc.date.available2011-05-15T15:56:51Z
dc.date.issued2007
dc.description.abstractA headspace sorptive extraction (HSSE) in combination with thermal desorption gas chromatography-mass spectrometry (TD-GC-MS) method for the analysis of volatile components (alcohols, esters, carbonyls, acids, phenols and lactones) in wine samples was developed. Extraction conditions such as salting-out effects, sorption time, stirring speed, phase ratio, extraction temperature, and effect of pH were thoroughly evaluated as part of method validation. The method was very sensitive with LODs and LOQs between 50 pg/L to 299 μg/L and 0.2 ng/L to 0.996 μg/L, respectively. Repeatability for all the compounds was between 3 and 22%. The intermediate repeatability was obtained within the acceptable range. Out of 39 volatile compounds selected, 37 were detected and quantitated. The method was found to be simple, cost-effective, sensitive, and use a small sample volume. The method was successfully applied for the routine analysis of 79 young red and white wine samples from various South African districts. © 2007 American Chemical Society.
dc.description.versionArticle
dc.identifier.citationJournal of Agricultural and Food Chemistry
dc.identifier.citation55
dc.identifier.citation21
dc.identifier.issn218561
dc.identifier.other10.1021/jf071554p
dc.identifier.urihttp://hdl.handle.net/10019.1/10077
dc.subjectadsorption
dc.subjectarticle
dc.subjectmass fragmentography
dc.subjectmethodology
dc.subjectreproducibility
dc.subjectsensitivity and specificity
dc.subjectSouth Africa
dc.subjectvolatilization
dc.subjectwine
dc.subjectAdsorption
dc.subjectGas Chromatography-Mass Spectrometry
dc.subjectReproducibility of Results
dc.subjectSensitivity and Specificity
dc.subjectSouth Africa
dc.subjectVolatilization
dc.subjectWine
dc.titleApplication of a headspace sorptive extraction method for the analysis of volatile components in South African wines
dc.typeArticle
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