Rapid Communications in Mass Spectrometry 2004-01-01

Determination of impurities in pesticides and their degradation products formed during the wine-making process by solid-phase extraction and gas chromatography with detection by electron ionization mass spectrometry. II. Bromopropylate, trichlorphon, parathion-methyl and tebuconazole.

Juan José Jiménez, José Luis Bernal, M Jesús del Nozal, Laura Toribio, José Bernal

Index: Rapid Commun. Mass Spectrom. 18(22) , 2629-36, (2004)

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Abstract

The presence of degradation products of bromopropylate, trichlorphon, parathion-methyl and tebuconazole in white and red wines elaborated from musts spiked with commercial formulations of the pesticides was studied. Must and wine were subjected to solid-phase extraction followed by gas chromatography with electron ionization mass spectrometric detection. Alpha-bromophenylphenylmethanol, aminoparathion, acetylaminoparathion-oxon and dichlorvos have been identified as degradation products of bromopropylate, parathion-methyl and trichlorphon in wines, respectively. Moreover, the presence of additives and impurities of the formulations in elaborated wines has also been found.Copyright (c) 2004 John Wiley & Sons, Ltd.