涡旋辅助分散液液微萃取-GC检测果蔬中农药残留  

Vortex-Assisted Dispersion Liquid-Liquid Microextraction Combined with GC for the Simultaneous Determination of Pesticide Residues in Fruits and Vegetables

作　　者：韦寿莲[1] 黄晓萍 欧阳壮 刘永[1] WEI Shoulian;HUANG Xiaoping;OUYANG Zhuang;LIU Yong(School of Chemical and Engineering, Zhaoqing University （Zhaoqing 526061;Institute of Zhaoqing Quality Supervision and Inspection （Zhaoqing 526070)

机构地区：[1]肇庆学院化学化工学院,肇庆526061 [2]肇庆市质量计量监督检测所,肇庆526070

出　　处：《食品工业》2018年第4期326-329,共4页The Food Industry

基　　金：肇庆市科技创新计划项目(2014F012);肇庆市科技计划项目(2015B010301002)

摘　　要：建立涡旋辅助分散液液微萃取果蔬中14种农药残留的方法。考察萃取剂种类、萃取剂体积、涡旋时间、离心转速、离心时间、盐添加量对微萃取的影响。在优化条件下,14种农药线性范围为0.005~2.00μg/mL,检出限(S/N=3)在0.20~4.0μg/kg之间。建立的液液微萃取-气相色谱法应用于肇庆地区果蔬测定,平均回收率在83.2%~110%之间,RSD≤8.1%。A method was developed for extraction fourteen pesticide residues in fruits and vegetables by vortex-assisted dispersion liquid-liquid microextraction. Under the optimized condition, the linear range of 14 kinds of pesticides was 0.005-2.00 μg/mL; The detection limits（S/N=3） were in the range of 0.20-4.0 μg/kg. The established liquid-liquid microextraction and gas chromatography method was applied to the determination of fruits and vegetables in Zhaoqing area. The average recoveries of spinach and grapes were between 83.2% and 110%, and RSD≤8.1%.

关 键 词：液液微萃取 农残 气相色谱 

分 类 号：O657.71[理学—分析化学] TS255.7[理学—化学]