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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