Residue distribution and risk assessment of bifenazate and its metabolite in garlic plant
文献类型： 外文期刊
作者： Bian, Yanli 1 ; Feng, Yizhi 1 ; Zhang, Aijuan 1 ; Qi, Xiaoxue 1 ; Pan, Jinju 1 ; Han, Jifeng 1 ; Ma, Xingang 1 ; Liang, Lin 1 ;
作者机构： 1.Shandong Acad Agr Sci, Inst Residue Technol, Shandong Acad Pesticide Sci, Jinan 250033, Peoples R China
关键词： Bifenazate; Metabolite; Conversion; Residue distribution; Risk assessment
期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）
ISSN： 0308-8146
年卷期： 2022 年 379 卷
页码：
收录情况： SCI
摘要： The dissipation, conversion and risk assessment of bifenazate and bifenazate-diazene in garlic plant were studied by a modified QuEChERS method coupled with UHPLC-MS/MS for the first time. Bifenazate dissipated rapidly in garlic chive and serpent garlic with the half-lives of 3.0-3.9 days and 6.1-6.9 days, respectively. Bifenazate residue on garlic (<0.01 mg/kg) was significantly lower than the other two matrices in the whole growing period, which meant residues in the above-ground part were not transferred to the garlic. Furthermore, garlic chive had higher residues than serpent garlic due to the differences in morphological characteristics. Bifenazatediazene was easier to convert to bifenazate, with the conversion rates of 93%, 16% and 32% in garlic, serpent garlic and garlic chive extracts, respectively. Additionally, the dietary intake risk for bifenazate was acceptable with RQ(chronic) < 100% according to the international and national assessments.
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