色谱2012，Vol.30Issue(7)：654-659,6.DOI:10.3724/SP.J.1123.2012.03039
加速溶剂萃取-在线凝胶渗透色谱-气相色谱-质谱联用法快速测定蔬菜和水果中多农药残留
Rapid determination of pesticide multiresidues in vegetables and fruits by accelerated solvent extraction coupled with online gel permeation chromatography-gas chromatography-mass spectrometry
摘要
Abstract
A novel method was developed for the rapid determination of 22 representative pesticide residues in vegetables and fruits based on accelerated solvent extraction (ASE) coupled with online gel permeation chromatography-gas chromatography-mass spectrometry ( GPC-GC-MS). The sample was extracted by accelerated solvent extraction with dichloromethane-ace-tone (1:1 , v/v) and purified with a carbon/NH;column, evaporated to dryness by nitrogen, then dissolved in cyclohexane-acetone (7:3, v/v), and finally identified and quantified by GPC-GC-MS system in selected ion monitoring (SIM) mode. The results showed that the linearities of the 22 pesticides were good in their linear ranges. The limits of detection (S/N = 3 ) were 0. 3 - 1. 8μg/kg. The limits of quantification (S/N =10) ranged from 1 -6 jig/kg. The recoveries for all at three spiked levels in Chinese cabbages and apples ranged from 70. 5% to 107. 5% with the relative standard deviations (RSDs) of 2.1% - 8.7%. The proposed method is accurate, sensitive and highly efficient in the extraction, and can be used for the quick determination of the pesticide multiresidues in vegetables and fruits.关键词
加速溶剂萃取/凝胶渗透色谱/气相色谱-质谱/多农药残留/蔬菜/水果Key words
accelerated solvent extraction (ASE)/gel permeation chromatography (GPC)/gas chromatography-mass spectrometry (GC-MS)/pesticide multiresidues/vegetables/fruits分类
化学化工引用本文复制引用
欧阳运富,唐宏兵,吴英,李贵英..加速溶剂萃取-在线凝胶渗透色谱-气相色谱-质谱联用法快速测定蔬菜和水果中多农药残留[J].色谱,2012,30(7):654-659,6.基金项目
常州市自然科学基金项目(CS2008209). （CS2008209）
