环丙酰草胺及其代谢产物在土壤和沉积物中的残留分析  

Determination of Cyclanilide and Its Metabolite in Soil and Sediment by HPLC

作　　者：何健[1] 豆叶枝 李菊颖 周艳[1] 吴文铸[1] 孔德洋[1] 

机构地区：[1]环境保护部南京环境科学研究所国家环境保护农药环境评价与污染控制重点实验室,南京210042

出　　处：《农药》2016年第9期679-680,687,共3页Agrochemicals

基　　金：水体污染控制与治理科技重大专项(2015ZX07203-007)

摘　　要：[目的】建立土壤和沉积物中环丙酰草胺及其代谢产物2，4-二氯苯胺的残留分析方法，为环丙酰草胺的环境残留监测及安全使用提供技术支撑。【方法】利用丙酮振荡提取待测物，二氯甲烷液液萃取富集并去除干扰物，并利用高效液相色谱分离，PDA检测器进行检测，外标法定量。【结果】环丙酰草胺和2，4-二氯苯胺在0．1～10．0mg／L质量浓度范围内均具有良好的线性关系（相关系数0．999）；在0．1—1．0mg／kg添加水平范围内环丙酰草胺回收率为81．6％～87．0％；相对标准偏差为1．0％～5．5％；2,4-二氯苯胺回收率为83．4％-89．7％；相对标准偏差为1．9％～5．8％。【结论】该方法分析速度快、灵敏度高、重现性好，适用于土壤和沉积物中环丙酰草胺及其代谢物2，4-二氯苯胺的检测和验证。[Aims] A method for determination of cyclanilide and its metabolite in soil and sediment was developed to provide technical support for the safe use of cyclanilide. [Methods] The residues in the samples were extracted with acetone and through dichloromethane liquid-liquid extraction, then detected by high performance liquid chromatography as well as PDA detector, and quantified by external standard method. [Results] The results showed that the method has good linearity （rZ=-0.999） when the concentrations of cyclanilide and 2,4-dichloroaniline were ranged from 0.1 to 10.0 mg/L, When the fortified levels were ranged from 0.1 to 1.0 mg/kg, the recoveries of cyclanilide were in the range of 81.6 to 87.0% and the relative standard deviations were 1.0-5.5%; the recoveries of 2,4-dichloroaniline were in the range of 83.4 to 89.7% and the relative standard deviations were 1.9-5.8%. [Conclusions] The method is rapid and simple with high sensitivity and good reproducibility, which is suitable for determination of cyclanilide and 2,4-dichloroaniline in soil and sediment.

关 键 词：环丙酰草胺 2 4-二氯苯胺 高效液相色谱 

分 类 号：TQ450.263[化学工程—农药化工]