高校化学工程学报Issue(6)：974-979,6.DOI:10.3969/j.issn.1003-9015.2013.06.009
分散液液微萃取-气相色谱联用检测果汁中有机磷类农药残留
Determination of Organophosphorous Pesticide Residues in Fruit Juices Samples Using Dispersive Liquid-liquid Microextraction Coupled with Gas Chromatography
摘要
Abstract
How to determine trace multipesticide residues in fruit juices is an important problem. In this paper, a novel method was developed for the analysis of eight organophosphorus pesticide residues in fruit juice by using dispersive liquid-liquid microextraction(DLLME) coupled with gas chromatography-flame photometric detector (GC-FPD). Parameters affecting the extraction performance, such as the species and volume of extraction and dispersive solvents, extraction time and salt concentration, were studied and optimized. Under the optimum extraction conditions, the enrichment factors range from 106 to 147 for eight kinds of organophosphorus pesticides, and the detection limits of the method are in the range of 0.034~0.153μg×L-1. The developed method was successfully applied for the determination of multipesticide residues in various fruit juices, and the average spiked recoveries range from 74.7%to 128.0%, and relative standard deviations is less than 5.6%. Results show that the method proposed could completely meet the requirement for the determination of pesticide residues in fruit juices.关键词
分散液液微萃取/有机磷类农药/气相色谱/果汁Key words
dispersive liquid-liquid microextraction (DLLME)/organophosphorus pesticides/gas chromatography(GC)/fruit juices分类
化学化工引用本文复制引用
张雪莲,张耀海,焦必宁,苏学素,艾春平..分散液液微萃取-气相色谱联用检测果汁中有机磷类农药残留[J].高校化学工程学报,2013,(6):974-979,6.基金项目
“十一五”国家科技支撑计划项目(2009BADB7B04)；公益性行业(农业)科研专项(200903054)；现代农业(柑橘)产业技术体系建设专项(CARS-27)；重庆市自然科学基金重点项目(cstc2013j B80009)。 （2009BADB7B04）
