Gas Chromatographic Determination of Cyprodinil, Fludioxonil, Pyrimethanil, and Tebuconazole in Grapes, Must, and Wine
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A rapid and simple gas chromatographic method for determinating cyprodinil, fludioxonil, pyrimethanil, and tebuconazole in grapes, must, and wine is described. An on-line microextraction method was used with a one-step extraction-partition procedure. Nitrogen-phosphorus and mass spectrometric detectors were used, because of their low sensitivity and high selectivity. Because of high selectivity of detector, no cleanup was necessary and the extract was concentrated 5 times. Recoveries from fortified grapes, must, and wine ranged from 93 to 110%. Limits of determination were 0.05 mg/kg for cyprodinil and pyrimethanil and 0.10 mg/kg for fludioxonil and tebuconazole.
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1,3 dioxolane derivative , cyprodinil , fludioxonil , fungicide , nitrogen , pesticide residue , phosphorus , pyrimethanil , pyrimidine derivative , pyrrole derivative , tebuconazole , triazole derivative , chemistry , food analysis , fruit , gas chromatography , mass fragmentography , reproducibility , standard , wine , Chromatography, Gas , Dioxoles , Food Analysis , Fruit , Fungicides, Industrial , Gas Chromatography-Mass Spectrometry , Nitrogen , Pesticide Residues , Phosphorus , Pyrimidines , Pyrroles , Reference Standards , Reproducibility of Results , Triazoles , Wine
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Inglês
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Journal of AOAC International, v. 80, n. 4, p. 867-870, 1997.
