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Analysis of six fungicides and one acaricide in still and fortified wines using solid-phase microextraction-gas chromatography/tandem mass spectrometry
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Orientador(es)
Resumo(s)
A multiresidue gas chromatographic method for the determination of six fungicides (captan, chlorthalonil,
folpet, iprodione, procymidone and vinclozolin) and one acaricide (dicofol) in still and fortified wines was
developed. Solid-phase microextraction (SPME) was chosen for the extraction of the compounds from the
studied matrices and tandem mass spectrometry (MS/MS) detection was used. The extraction consists in a
solvent free and automated procedure and the detection is highly sensitive and selective. Good linearity
was obtained with correlation coefficients of regression (R2) > 0.99 for all the compounds. Satisfactory
results of repeatability and intermediate precision were obtained for most of the analytes (RSD < 20%).
Recoveries from spiked wine ranged from 80.1% to 112.0%. Limits of quantification (LOQs) were considerably
below the proposedmaximumresidue limits (MRLs) for these compounds in grapes and below the suggested
limits for wine (MRLs/10), with the exception of captan.
Descrição
Palavras-chave
Fungicide Acaricide SPME GC–MS/MS Wine
Contexto Educativo
Citação
Editora
Elsevier