QUICK GAS-CHROMATOGRAPHIC METHOD FOR DETERMINING COMMON PESTICIDES INMUSTS AND WINES

A rapid method based on gas chromatography which determines parathion- methyl, fenitrothion, chlorpyrifos, dichlofluanid, vinclozolin, chlozo linate, procymidone and iprodione is described. It involves quantitati ve extraction with n-hexane and determination by capillary gas chromat ography using an electron capture detector. Pesticides were satisfacto rily separated in 15 min with a phenylmethylsilicone fused-silica capi llary column under isothermal conditions. Quantitation was carried out using dieldrin as internal standard. The method seems appropriate for oenological laboratory work because of its simplicity and rapidity. I t was successfully used to identify and quantify pesticides studied in musts and wines.