【Abstract】 Pyrethroid pesticide residues in foods were extracted,cleaned up,with gas chromatographic,using extermal standard method.Analytical conditions were as follows:1m*3mm(i,d)1.5%OV 17+2%OV 210+3%QF chromosorb W AM DMCS 80 100 mesh,ECD at 280℃,N 2 carrier gas with flow rate of 50 60mL/min.The recoveries of 4 pyrethroid pesticides residues ranged from 90.25% 100.9%,and detection limit was 0.0005mg/kg 0.002mg/kg.更多还原