Method validation for detection of afidopyropen and M440I007 in tea

文献类型： 外文期刊

第一作者： Guo, Mingming

作者： Guo, Mingming;Qin, Yujie;Sun, Hezhi;Li, Zhaoqun;Zhang, Xinzhong;Wang, Xinru;Yang, Mei;Luo, Fengjian;Chen, Zongmao;Zhou, Li;Guo, Mingming;Qin, Yujie;Sun, Hezhi;Li, Zhaoqun;Zhang, Xinzhong;Wang, Xinru;Yang, Mei;Luo, Fengjian;Chen, Zongmao;Zhou, Li

作者机构：

关键词： afidopyropen; tea; Cleanert TPT

期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：4.1； 五年影响因子：4.2 ）

ISSN： 0022-5142

年卷期： 2023 年 103 卷 12 期

页码：

收录情况： SCI

摘要： BACKGROUNDAfidopyropen is a novel biorational insecticide for controlling piercing pests with great potential for application in tea gardens that can form the metabolite M440I007 when utilized for crops. However, because of a lack of analytical method for afidopyropen and M440I007 in tea, there is no means of monitoring the residues. Therefore, method development, validation and simultaneous determination of afidopyropen and M440I007 in fresh tea leaves, dried tea and tea infusion is of prime significance. RESULTSA TPT cartridge-based method was developed for the solid phase extraction of afidopyropen and M440I007 from tea matrices. Extraction and clean-up conditions, including the composition, volume and temperature of elutions, were optimized to achieve the best results. Both targets were extracted using water and acetonitrile, with a water:acetonitrile (v/v) ratio of 4:10 for fresh leaves and 8:10 for dried tea, which were then cleaned and analyzed using ultraperformance liquid chromatography-tandem mass spectrometry. Both analytes demonstrated excellent linearity with a correlation coefficient above 0.998. The optimized analytical method offered limits of quantifications of 0.005, 0.005 and 0.002 mg kg(-1) (converted to dried tea) in fresh tea shoots, dried tea and tea infusion for both targets, respectively. Average recoveries of afidopyropen and M440I007 ranged from 79.0% to 101.5%, with relative standard deviations <= 14.7%. CONCLUSIONThe results showed that the method of determination for these insecticides in tea matrices was practical and efficient. (c) 2023 Society of Chemical Industry.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序