Method validation, residue analysis and dietary risk assessment of trifloxystrobin and trifloxystrobin acid in milk, eggs and pork

文献类型： 外文期刊

第一作者： Bi, Yingying

作者： Bi, Yingying;Han, Lijun;Qin, Fayi;Song, Shuangyu;Lv, Xinru;Dong, Qin;Qiao, Chengkui;Ren, Bo

作者机构：

关键词： eggs; milk; pesticide residues; pork; trifloxystrobin

期刊名称：BIOMEDICAL CHROMATOGRAPHY （ 影响因子：1.911； 五年影响因子：1.829 ）

ISSN： 0269-3879

年卷期： 2022 年 36 卷 5 期

页码：

收录情况： SCI

摘要： Trifloxystrobin (TFS) is a widely used strobilurin fungicide and its residues accumulating in animal-derived food could result in potential harm to consumers. By optimization of extraction solvents and cleanup sorbents, a residue analysis method for TFS and its metabolite trifloxystrobin acid (TFSA) was established in milk, eggs and pork based on QuEChERS sample preparation and LC-MS/MS. The calibration curves exhibited good linearity with determination coefficients (R-2) >0.9930 over the range of 0.5-250 ng/ml for both TFS and TFSA. The recoveries of the two analytes were 81-100% with RSD 3-10% and 76-96% with RSD 2-13%, respectively. The limit of quantification (LOQ) was 1 ng/g for both analytes. The milk, egg and pork samples, 30 each, were collected from the 30 main producing regions in China, and residues of TFS and TFSA were analyzed. The concentrations of both analytes were lower than the corresponding LOQs and maximum residue limits. Long-term dietary risk assessment showed that the hazard quotients were 0.001-0.003%, indicating an absence of unacceptable risks in milk, eggs and pork to the health of common consumers in China.

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