摘要
A method for the rapid determination of 23 organophosphorus pesticide residues in vegetables and fruits by SIM-GC-MS is described in this paper.Analysis is performed by gas-chromatography with mass selective detector（GC-MS）and selected ion monitoring（SIM）mode,and pesticides are positively confirmed by retention times and characteristic ion ratios.It takes less than 27 min to detect 23 organophosphorus pesticide residues.The spiked recoveries are between 70%～113%when the added pesticides concentration is in the range of 0.01μg～1.00μg.The RSD is less than 20%.The limit of detection is 0.001μg·g-1～0.06μg·g-1.This method is suitable for the daily detection of normal laboratory.
A method for the rapid determination of 23 organophosphorus pesticide residues in vegetables and fruits by SIM-GC-MS is described in this paper. Analysis is performed by gas-chromatography with mass selective detector （GC-MS） and selected ion monitoring（SIM） mode, and pesticides are positively confirmed by retention times and characteristic ion ratios. It takes less than 27min to detect 23 organophosphorus pesticide residues. The spiked recoveries are between 70%～113% when the added pesticides concentration is in the range of 0. 01μg～1.00μg. The RSD is less than 20%. The limit of detection is 0. 001μg·g^-1～0. 06μg·g^-1. This method is suitable for the daily detection of normal laboratory.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2005年第4期559-562,共4页
Chemical Research and Application
作者简介
刘永波（1977-），男，工程师。主要从事气质联机、气相色谱的开发与应用：农药、兽药残留及污水、污泥中有机污染物的分析。Email：liuybfrank@sohu．com
