农药学学报2018，Vol.20Issue(1)：83-89,7.DOI:10.16801/j.issn.1008-7303.2018.0014
QuEChERS-超高效液相色谱-串联质谱法测定玉米植株和土壤中溴氰虫酰胺及其代谢物残留
Determination of cyantraniliprole and its metabolite in maize plant and soil by QuEChERS and ultra-performance liquid chromatography tandem mass spectrometry
摘要
Abstract
An efficient method for the determination of cyantraniliprole and its metabolite J9Z38 residues in maize plant and soil were established using ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). The fate of cyantraniliprole and J9Z38 in maize plant and soil after seed treatment was also evaluated. The target compounds were extracted with acetonitrile, pretreated using QuEChERS method and analyzed by UPLC-MS/MS. The mean recoveries of cyantraniliprole and J9Z38 at three spiked levels (0.01, 0.1 and 1 mg/kg) ranged from 81％ to 103％, respectively, with relative standard deviations both less than 10.1％. The results demonstrate theconcentrations of cyantraniliprole and J9Z38 have a good linear relationship with the corresponding peak area in the range of 0.1-50 μg/L, with dertermination coefficient (R2 > 0.999), and limits of quantitation were 0.01 mg/kg. The dissipation dynamics of cyantraniliprole and J9Z38 were both in line with the first order kinetic equation. The half-lives of cyantraniliprole in maize plant and soil were 8.3 and 8.2 d (in spring), and 3.9 and 4.5 d (in summer), respectively. All the above observations indicate that the established analytical method is sample, sensitive, highly efficient, and suitable for monitoring the residues of cyantraniliprole and its metabolite J9Z38 in maize plant and soil.关键词
超高效液相色谱-串联质谱/QuEChERS/玉米/溴氰虫酰胺/代谢物/J9Z38/残留Key words
ultra-performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS)/QuEChERS/maize/cyantraniliprole/metabolite/J9Z38/residue分类
化学化工引用本文复制引用
丁金凤,徐春梅,张薇,邹楠,慕卫..QuEChERS-超高效液相色谱-串联质谱法测定玉米植株和土壤中溴氰虫酰胺及其代谢物残留[J].农药学学报,2018,20(1):83-89,7.基金项目
国家重点研发计划(2017YFD0201600). （2017YFD0201600）
