METHOD FOR MULTI-RESIDUAL DETERMINATION OF ORGANO-CHLORINATED PESTICIDES IN FOOD SAMPLES () BY ULTRASONIC EXTRACTION FOLLOWED BY GAS CHROMATOGRAPHY COUPLED WITH ELECTRON CAPTURE DETECTOR ()

摘要

The invention relates to an analytic method for the determination of organo-chlorinated pesticides from fish and aquatic organisms samples. According to the invention, the method consist in ultrasonically extracting the samples with a mixture of hexane: acetone solvents, at the ambient temperature, for 15...30 min, followed by the extract evaporation and then by the simultaneous determination of 21 analytes by gas chromatography coupled with electron-capture detector.