Method for determining nitrogenous heterocycle compounds in wine.

Harald Keim; Gilles de Revel; Stéphanie Marchand; Alain Bertrand

doi:10.1021/jf025591m

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Method for determining nitrogenous heterocycle compounds in wine.

Harald Keim·Gilles de Revel·Stéphanie Marchand·Alain Bertrand

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Abstract

Qualitative and quantitative analyses of N-heterocycle compounds were conducted by using a liquid-liquid extraction followed by additional chemical silica gel purification and injection into a gas chromatographic (GC) column coupled to a nitrogen-phosphorus detector (NPD). The purified extract fraction was investigated by GC-NPD and by GC-mass spectrometry. The compounds identified and quantified in wines were 2,4,5-trimethyloxazole, 2,4-dimethylthiazole, and 4-methylthiazole by GC-NPD and both 2-acetylthiazole and 2-acetyl-2-thiazoline by GC-MS. The procedure was used to analyze different wines and gave reliable and reproducible results.

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Chromatography, Gas Gas Chromatography-Mass Spectrometry Heterocyclic Compounds Hydrogen-Ion Concentration Quality Control Reproducibility of Results Thiazoles Wine Journal Article

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Harald Keim, Gilles de Revel, Stéphanie Marchand, Alain Bertrand. 2002-10-09. Method for determining nitrogenous heterocycle compounds in wine.. https://doi.org/10.1021/jf025591m

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