NDLI: The Determination of 11 B/ 10 B and 87 Sr/ 86 Sr Isotope Ratios by Quadrupole-Based ICP-MS for the Fingerprinting of South African Wine

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The Determination of 11 B/ 10 B and 87 Sr/ 86 Sr Isotope Ratios by Quadrupole-Based ICP-MS for the Fingerprinting of South African Wine

Content Provider	Semantic Scholar
Author	Vorster, Clarisa Greeff, L. Coetzee, Paul P.
Copyright Year	2010
Abstract	The 11 B/ 10 B and 87 Sr/ 86 Sr isotope ratios in wines and soils of four major South African wine-producing regions have been determined by quadrupole-based ICP-MSin order to establish a fingerprint for origin verification of the wines. The 11 B/ 10 B isotope ratio was found to be a useful tool to distinguish among the wines of the selected wine regions. In addition, the use of B isotope ratios together with elemental concentrations of selected indicator elements as independent variables in a linear discriminant analysis procedure was shown to be a highly successful method to classify wine according to geographical origin. A good correlation between the B and Sr isotope ratios in wine and its provenance soil was found. Both wine and soil samples were prepared using microwave-assisted digestion followed by the isolation of boron and strontium from the sample matrix through element-specific ion exchange. Isotope ratio measurements with good precision, ~0.1 % RSD, for both boron and strontium have been obtained. The 87 Sr/ 86 Sr ratio showed limited potential as an indicator of provenance in the wine-producing regions included in this study, since the wines of only one region could be distinguished from the others. Keywords: Boron Isotope Ratio, Strontium Isotope Ratio, ICP-MS, Wine Analysis, Fingerprinting, Provenance Determination
Starting Page	207
Ending Page	214
Page Count	8
File Format	PDF HTM / HTML
Volume Number	63
Alternate Webpage(s)	https://www.ajol.info/index.php/sajc/article/download/123804/113362
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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