Solid phase extraction in combination with comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry for the detailed investigation of volatiles in South African red wines

Simple item page
dc.contributor.authorWeldegergis B.T.
dc.contributor.authorCrouch A.M.
dc.contributor.authorGorecki T.
dc.contributor.authorde Villiers A.
dc.date.accessioned2011-10-13T16:59:26Z
dc.date.available2011-10-13T16:59:26Z
dc.date.issued2011
dc.description.abstractComprehensive two-dimensional gas chromatography in combination with time-of-flight mass spectrometry (GC × GC-TOFMS) has been applied for the analysis of volatile compounds in three young South African red wines. In spite of the significant benefits offered by GC × GC-TOFMS for the separation and identification of volatiles in such a complex matrix, previous results utilizing headspace solid phase micro extraction (HS-SPME) demonstrated certain limitations. These were primarily associated with the choice of sample preparation technique, which failed to extract some influential semi-volatile wine constituents. Therefore, in the current report, we utilized solid phase extraction (SPE) in combination with GC × GC-TOFMS for the detailed investigation of particularly low-level semi-volatiles in South African wine. 214 compounds previously reported in grapes and related beverages were tentatively identified based on mass spectral data and retention indices, while 62 additional compounds were positively identified using authentic standards. The method proved particularly beneficial for the analysis of terpenes, lactones and volatile phenols, and allowed us to report the presence of numerous volatile compounds for the first time in Pinotage wines. © 2011 Elsevier B.V.
dc.description.versionArticle
dc.identifier.citationAnalytica Chimica Acta
dc.identifier.citation701
dc.identifier.citation1
dc.identifier.citationhttp://www.scopus.com/inward/record.url?eid=2-s2.0-79960311595&partnerID=40&md5=a2117b352f8a7615dd6eb01c6ed6587a
dc.identifier.issn32670
dc.identifier.other10.1016/j.aca.2011.06.006
dc.identifier.urihttp://hdl.handle.net/10019.1/17107
dc.subjectSolid Phase Microextraction, time of flight mass spectrometry , volatile agent, alcohol derivative, wine, Mass spectrometry
dc.titleSolid phase extraction in combination with comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry for the detailed investigation of volatiles in South African red wines
dc.typeArticle
Files
Collections
Stellenbosch University - Scopus Publications