Determ Ination 26 Organochlorine and Pyrethroid Pesticides Residues in Fruit by GC-ECD

Abstract:

In this manuscript,a method for determing 26 organochlorine and pyrethroid pesticides residues in fruit has been build by GC-ECD technique.The pesticide residues in fruit samples were extracted with acetonitrile and by ultrasonic,organochlorine pesticides and pyrethroids pesticides were cleaned-up by PSA,and C18,determ ined by gas chromatography-electron capture detection(GC-ECD).The detection limits were 0.001-0.005 mg/kg.The average recoveries for the pesticides ranged from 84.5% to 104.5%,with the relative standard deviation(RSD)between 1.1% and 6.7% for all compounds.The method has proven to be simplicity,higher sensitivity and accuracy.