Determination of polychlorinated biphenyls and chlorinated pesticides in environmental biological samples using focused microwave-assisted extraction

摘要

Organochlorine compounds such as polychlorinated biphenyls (PCBs) and chlorinated pesticides have been analysed in environmental biological samples using focused microwave-assisted extraction (FMW). The analytical procedure is presented and the results for two Standard Reference Materials, a cod liver oil and a freeze-dried mussel tissue, are reported. The average recoveries for the sum of the PCBs are between 93 and 106 , and for the sum of the chlorinated pesticides are between 109 to 115 for all the certified compounds analysed. The developped analytical procedure is highly reproducible with an average standard deviation of 8 for the sum of the PCBs and 9.7 for the sum of the chlorinated pesticides in the two matrices. References: 33