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Residue behavior and risk assessment of validamycin a in grape under field conditions

文献类型： 外文期刊

作者： Yu, Jianzhong 1 ; Xu, Zhenlan 1 ; Zhang, Changpeng 1 ; Chen, Liezhong 1 ; Hu, Xiuqing 1 ; Yu, Ruixian 1 ; Zhao, Xuepin 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, State Key Lab Qual & Safety Agroprod, MOA Key Lab Pesticide Residue Detect, Inst Agroprod Safety & Nutr, Hangzhou, Peoples R China

关键词： Validamycin A; grape; residue behavior; dissipation; dietary risk assessment

期刊名称：JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES （ 影响因子：1.99； 五年影响因子：2.118 ）

ISSN： 0360-1234

年卷期： 2021 年 56 卷 6 期

页码：

收录情况： SCI

摘要： The dissipation and residue of validamycin A in grapes were investigated under field conditions. An ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for the determination of validamycin A in grapes was established and validated. Methanol and water (90/10, v/v) were used for validamycin A extraction and purification used MCX solid-phase extraction cartridges. The average recoveries of validamycin A in grapes at 0.01, 0.50, and 5.0 mg/kg levels were between 83.8 and 91.4%, with relative standard deviations of 2.3-3.0%. The half-lives of validamycin A in grape were 4.4-6.1 days. The terminal residues in grapes over a range of harvest times (7, 14, and 21 days) were no more than 0.73 mg/kg. According to Chinese consumption data, the risk quotient (RQ) of validamycin A was 3.22%, demonstrating a low risk to consumers. The current study may offer guidance for validamycin A use and could aid the government in determining the maximum residue level (MRL) values for validamycin A in grapes.

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