DETERMINATION OF THE FUNGICIDE VINCLOZOLIN IN HONEY AND BEE LARVAE BYSOLID-PHASE AND SOLVENT-EXTRACTION WITH GAS-CHROMATOGRAPHY AND ELECTRON-CAPTURE AND MASS-SPECTROMETRIC DETECTION

Methods for the determination of residual vinclozolin in honey and bee larvae are proposed. The fungicide can be extracted with an n-hexane- acetone (70:30, v/v) mixture, or by passage through ODS cartridges whi ch requires no subsequent clean-up. Vinclozolin is quantified by capil lary gas chromatography with electron-capture and mass spectrometric d etection. Recoveries from spiked samples exceed 90%, with a relative s tandard deviation of 3.5-4.5%.