Dissipation and Risk Assessment of Multiresidual Fungicides in Grapes under Field Conditions

文献类型： 外文期刊

第一作者： Yang, Mei

作者： Yang, Mei;Luo, Fengjian;Zhang, Xinzhong;Zhou, Li;Lou, Zhengyun;Chen, Zongmao;Yang, Mei;Luo, Fengjian;Zhang, Xinzhong;Zhou, Li;Lou, Zhengyun;Chen, Zongmao;Zhao, Meiqin

作者机构：

关键词： fungicide; multiresidue; metabolite; residue distribution; risk assessment; grapes

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN： 0021-8561

年卷期： 2020 年 68 卷 4 期

页码：

收录情况： SCI

摘要： Grapes are among the most popular fruits globally, and various fungicides are widely applied to grape crops. As such, the presence of multiple fungicide residues and dietary risks in grapes has become the focus of significant attention. In this study, an easy-to -implement and sensitive UPLC-MS/MS approach was developed to simultaneously determine pyraclostrobin, dimethomorph, cymoxanil, cyazofamid and its metabolite CCIM in grapes via QuEChERS. This approach achieved 78.1-106.0% recovery and a 0.01 mg kg(-1) limit of quantitation (LOQ). Field trials revealed that these compounds had degradation half-lives ranging from 0.9 to 13.3 days. And their terminal residues ranging from < LOQ to 1.36 mg kg(-1) were below the official maximum residue limit (MRL) in China. The short-term risk for each tested fungicide was below 54%. The long-term risk of individual chemicals ranged from 0.0086% to 3.1%, and their cumulative risk was 4.4%. Results indicated that the dietary risk of these fungicides in grapes was minor.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序