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LIU Jin, MAO Haifeng, CAI Hongxin, YANG Hongguo, HU Lifeng, LUO Wenbo, NI Chunfang. Determination of Pyrethroid Pesticides in Human Blood by QuECHERS-GC/MS[J]. Forensic Science and Technology, 2020, 45(2): 169-172.
Determination of Pyrethroid Pesticides in Human Blood by QuECHERS-GC/MS
LIU Jin1, MAO Haifeng1, CAI Hongxin1, YANG Hongguo1, HU Lifeng1, LUO Wenbo1, NI Chunfang2
1. Institute of Criminal Science, Jinshan Branch of Shanghai Public Security Bureau, Jinshan 201508, Shanghai, China
2. Identification Center of Evidential Materials, Shanghai Public Security Bureau, Shanghai 200083, China
Abstract
Objective To develop a method for quick analysis of pyrethroid pesticides in human blood by QuECHERS (Quick, Easy, Cheap, Effective, Rugged, Safe)-GC/MS.Methods With C18 and PSA as the absorbents, QuECHERS-GC/MS was conducted to determine the seven pyrethroid pesticides: bifenthrin, fenpropathrin, lambda-cyhalothrin, cyhalothrin, cypermethrin, fenvalerate and deltamethrin in human blood.Results For the seven pyrethroid pesticides tested, their linear range was of 1.0~10.0μg/mL, with RSD being among 5.6~10.3%, recovery range spanning across 79.6~108.6%, and the lowest detecting limits among 0.1~0.3μg/mL.Conclusions This method is simple, sensitive and accurate, capable of being used for rapid detection of pyrethroid pesticide in casework.
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Determination of pesticides in food is an important problem as food safety has become really a hot topic in today’s China. Sample preparation is the most time consuming and tiring procedure in determination process, and the quality of preparation determines the analysis accuracy and precision. As a quick, easy, cheap, effective, rugged and safe sample preparation method, QuEChERS method has received much concerns. This article summarized the application of QuEChERS method in multi-residue determination of precides in fruits and vegetables, cereal, grains, and animal tissue, etc, and forecasted the bright prospect of QuEChERS method.
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-environment and Climate Change, Ministry of Agriculture, Beijing 100081, China