分散固相萃取-气相色谱-串联质谱法测定蔬菜中多环芳烃及卤代多环芳烃  

Determination of Polycyclic Aromatic Hydrocarbons and Halogenated Polycyclic Aromatic Hydrocarbons in Vegetable by Gas Chromatography-Tandem Mass Spectrometry

作　　者：王丽[1,2,3] 金芬[2] 李敏洁[2] 刘玥[4] 焦必宁[1,3] 邵华[2] 金茂俊[2] 王静[2] 

机构地区：[1]西南大学食品科学学院,重庆400715 [2]中国农业科学院农业质量标准与检测技术研究所农产品质量与食物安全重点实验室,北京100081 [3]中国农业科学院柑桔研究所,重庆400712 [4]河北师范大学化学与材料科学学院,石家庄050024

出　　处：《分析化学》2013年第6期869-875,共7页Chinese Journal of Analytical Chemistry

基　　金：国家科技支撑计划(No.2012BAD29B03)资助项目

摘　　要：建立了同时检测蔬菜中16种多环芳烃(PAHs)和11种卤代多环芳烃(X-PAHs)污染水平的分散固相萃取-气相色谱-串联质谱(GC-MS/MS)分析方法。样品中的多环芳烃和卤代多环芳烃经正己烷提取,N-丙基乙二胺吸附剂(PSA)和十八烷基键合硅胶吸附剂(C18)分散固相萃取净化剂净化,气相色谱-串联质谱方法测定,外标法定量。16种PAHs和11种X-PAHs在50,100和200μg/kg添加浓度下的回收率为74.7%～115.1%,相对标准偏差为1.6%～15.3%,方法检出限为0.03～7.4μg/kg。A method was developed for determination of 16 polycyclic aromatic hydrocarbons and 11 halogenated polycyclic aromatic hydrocarbons in vegetables by gas chromatography-tandem mass spectrometry（GC-MS/MS）.The analytes were extracted from the vegetable samples by hexane,and purified by dispersion solid phase extraction using PSA and C18 sorbent,then analyzed by gas chromatography-tandem mass spectrometry（GC-MS/MS） with external standard method.The recoveries were in the range of 74.7%-115.1%,and the relative standard deviations（RSD） were 1.6%-15.3% at three spiked levels of 50,100 and 200 μg/kg for 16 polycyclic aromatic hydrocarbons and 11 halogenated polycyclic aromatic hydrocarbons.The limits of quantification（LOQ） for all analytes were 0.03-7.39 μg/kg.

关 键 词：多环芳烃 卤代多环芳烃 气相色谱-串联质谱 分散固相萃取 蔬菜 

分 类 号：TS255.7[轻工技术与工程—农产品加工及贮藏工程] O657.63[轻工技术与工程—食品科学与工程]