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Residue and Degradation of Cyantraniliprole and Its Main Metabolite in Pepper and Soil

文献类型： 外文期刊

作者： He Hong-Mei 1 ; Zhang Chun-Rong 1 ; Zhu Ya-Hong 1 ; Zhang Chang-Peng 1 ; Ping Li-Feng 1 ; Zhao Hua 2 ; Wu Min; Tang Ta 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Qual & Standard Agroprod, State Key Lab Breeding Base Zhejiang Sustainable, Minist Agr,Key Lab Pesticide Residue Detect, Hangzhou 310021, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Qual & Standard Agroprod, State

关键词： Cyantraniliprole;J9Z38;Pepper;Residue;Ultra performance liquid chromatography-tandem mass spectrometry

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.134； 五年影响因子：0.909 ）

ISSN： 0253-3820

年卷期： 2014 年 42 卷 8 期

页码：

收录情况： SCI

摘要： An analytical method based on ultra performance liquid chromatography-tandem mass spectrometry was developed for the determination of cyantraniliprole and its main metabolite J9Z38 residues in pepper and soil. The fate of cyantraniliprole and J9Z38 in pepper and soil was also evaluated. The target compounds were extracted with acetonitrile, cleaned up by C-18 cartridge, and further analyzed by gradient ultra performance liquid chromatography. tandem mass spectrometry with electrospray ionization in positive mode (ESI+) using a UPLC BEH C-18 Column. The method was validated using fortified pepper and soil. Intra-day mean recoveries of cyantraniliprole and J9Z38 at three spiked levels (0. 01, 0. 10 and 1. 00 mg/kg) ranged from 88. 6% to 105. 7% with relative standard deviations of 3. 8%-15. 1%. Inter-day mean recoveries of cyantraniliprole and J9Z38 were found between 91. 4% and 105. 3% with relative standard deviations of 4. 9%-12. 3% at three spiked levels. Limits of quantification (LOQs) of cyantraniliprole and J9Z38 were 0. 1 and 0. 2 mu g/kg, respectively. Linear calibration functions with correlation coefficients of r>0. 9992 were obtained in the concentration range of 2. 0-128. 0 mu g/L. This method was applied to the analysis of cyantraniliprole and J9Z38 residues in real pepper and soil samples selected from field. The results of the residue dynamic experiment showed that the half. life of cyantraniliprole ranged from 9. 2 to 11. 2 days in pepper and from 9. 2 to 20. 8 days in soil. While, the residues of J9Z38 in pepper were below LOQ, and the half. life of J9Z38 in soil was 9. 4 days. The degradation speed of cyantraniliprole increased with the increase of the precipitation.

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