Abstract
A rapid, simple and efficient multiresidue method was developed and optimized for the identification and quantification of organochlorine pesticides (OCP) and synthetic pyrethroids (SPs) in sheep meat samples. The method consists of a modified Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) sample preparation method. Samples were extracted with acetonitrile, and the extracts were cleaned up by dispersive solid phase extraction with primary secondary amine (PSA) sorbent and anhydrous magnesium sulphate. Determination and quantification of OCP residues was carried out using a GC-ECD. Mean recoveries were found in the ranges 70-110 % and 84-99 % for the investigated OCPs and SPs, respectively, with the RSD was less than 20%. This method was found more efficient and reliable enabling more number of samples to be analysed in less time. Moreover lipid removal was achieved to a large extent to get desired result.
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