中国农业科学2012，Vol.45Issue(13)：2636-2647,12.DOI:10.3864/j.issn.0578-1752.2012.13.008
QuEChERS 前处理结合HPLC-MS/MS法分析氯虫苯甲酰胺在甘蓝和土壤中的残留
Degradation Dynamics and Residues Analysis of Chlorantraniliprole in Cabbage and Soil by QuEChERS-High Performance Liquid Chromatography-Tandem Mass Spectrometry
摘要
Abstract
[Objective] The objective of this study is to research degradation dynamics of chlorantraniliprole in the vegetable and soil, and to formulate a scientific basis for the reasonable spray volume and the safe interval period on controlling vegetable pests. [ Method ] Degradation dynamics and terminal residue of chlorantraniliprole of 20% chlorantraniliprole SC in cabbage and soil were investigated by QuEChERS-high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). [Resultl The recoveries of chlorantraniliprole from the cabbage and the soil were 81.25%-92.05% and 82.92%-93.38%, respectively. The residues in the cabbage and soil were proved to chlorantraniliprole through qualitative analysis by HPLC-MS/MS. Degradation dynamic equations of chlorantraniliprole in cabbage and soil fitted the first-order reaction dynamic equations. The half-lives of degradation of chlorantraniliprole in cabbage and soil were 7.66 and 6.86 d, respectively. The final residues of chlorantraniliprole were not detected in cabbage and 0.0071 mg·kg-1 in soil, respectively, when 20% chlorantraniliprole SC was applied at 0.045 g·m-2. The final residues of chlorantraniliprole were 0.0063 mg·kg-1 in cabbage and 0.1004 mg·kg-1 in soil, respectively, when 20% chlorantraniliprole SC was applied at 0.090 g· m-2. I Conclusion ] 20% chlorantraniliprole SC was applied at 0.045 and 0.090 g· m-2 could be considered safe in the cabbage field.关键词
氯虫苯甲酰胺/QuEChERS/HPLC-MS/MS/降解/残留Key words
chlorantraniliprole/ QuEChERS/ HPLC-MS/MS/ degradation/ residue引用本文复制引用
陈小军,王萌,范淑琴,崔海荣,杨益众..QuEChERS 前处理结合HPLC-MS/MS法分析氯虫苯甲酰胺在甘蓝和土壤中的残留[J].中国农业科学,2012,45(13):2636-2647,12.基金项目
高校博士点专项科研基金(20113250120008)、中国博士后科研基金(2011M500956)、江苏省科技支撑计划(农业)(SBE201230044)、江苏省高校自然科学基金(10KJB210006)、2011年江苏省高等学校大学生实践创新训练计划项目(2011-761) （20113250120008）
