Screening method for petroleum- derived aromatic hydrocarbons in wine

• Autores: Yoji Hayasaka, Gayle A. Baldock
• Localización: Australian journal of grape and wine research, ISSN 1322-7130, Vol. 10, Nº 1, 2004, págs. 17-25
• Idioma: inglés
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• Resumen

  • A novel screening method was developed using gas chromatography-mass spectrometry (GC-MS) combined with headspace-solid phase microextraction (SPME) for the detection of various aromatic hydrocarbons in wine. Petroleum-derived products such as toluene, styrene, alkylbenzenes and alkylnaphthalenes were targeted for screening. They were detected by monitoring their characteristic ions (selected ion monitoring) and subsequently quantified using selected deuterium-labelled internal standards. The individual compounds were detected at levels as low as 1 µg/L in red or white wine. The method developed was rapid, simple, solvent-free and sensitive. Application of the method to a tainted red wine confirmed the presence and allowed determination of the level of taint hydrocarbons and agreed with the sensory evaluation (kerosene-like).