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Determination of various wine constituents
using direct injection, automated off-line solid phase extraction, and liquid-liquid extraction in combination with liquid chromatographytandem mass spectrometry

EMMIE DUMONT1, MICHAEL GEORGES2, REMY FULCHIC2, GERD VANHOENACKER1*, FRANK DAVID1, PAT SANDRA1
*Corresponding author
1. Research Institute for Chromatography, Kennedypark 26, Kortrijk, B-8500, Belgium
2. Château Léoville Las Cases, Route Pauillac, BP4, Saint Julien Beychevelle, 33250, France

Abstract

The complex matrix of wine and derived products often makes it necessary to perform extensive sample clean-upprior to the determination of compounds at low levels. Although the combination of liquid chromatography with triplequadrupole mass spectrometry (LC-MS-MS) offers specific data, good sensitivity and eliminates part of the matrix, this sometimesremains insufficient to determine residual compounds. Automated off-line solid-phase extraction (SPE) or liquid-liquid extractioncan be used in combination with LC-MS-MS to meet these specific needs. This paper describes the experimental set-up andapplicability of LC-MS-MS for the determination of biogenic amines, mycotoxins, stilbenes, flavonoids, tannins, anthocyanins andphenolic acids in wine matrices and grape juice.


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