摘要
建立了一种基于液相色谱一串联质谱法(LC-MS/MS)定量分析各种微量农药残留的方法,并应用于水果蔬菜中农药残留物的定量检测.实验采用乙腈提取水果蔬菜中的各种农药残留,应用固相萃取,经高效液相色谱分离,以串联质谱在多反应监测(MRM)模式下测定,在35min 内完成了70种农药的定量分析.70种农药在0.01~2.0μg/mL 内的线性关系良好(r>0.995),平均回收率为70%~120%,检出限为10μg/kg;该方法的检出限、回收率及相对标准偏差均能满足农药残留分析的要求.
A multi-residue method for the determination of 70 pesticides in fruits and vegetables by means of LC-MS/MS is presented. The pesticides were extracted by acetonitrile,purified using SPE and finally detected by LC-MS/MS within 35 minutes. The method is proved to be linear obtaining correlation coefficients from 0. 995 to 1. 000 over the range 0. 01--2.00μg/mL. The obtained recoveries are in the range 70% -120 % and the LOD is 10 μg/kg. The LOD, recovery and RSD can meet the demands of the analysis of pesticide residue.
出处
《南开大学学报(自然科学版)》
CAS
CSCD
北大核心
2008年第2期35-41,共7页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
国家自然科学基金(30771771)
天津市自然科学基金(06YEJMJC05600)
作者简介
宋文华(1964-),男,山东省烟台人,教授,博士生导师,主要从事环境化学、环境管理与风险评价、环境生物技术、安全技术及工程和消防工程等研究.