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凝胶渗透色谱-气相串联质谱同时测定海产品中34种多氯联苯和76种农药

标题: 凝胶渗透色谱-气相串联质谱同时测定海产品中34种多氯联苯和76种农药
作者: 李星,曹彦忠,张进杰,崔宗岩,王向红
出版时间: 2014-01-01
机构: 河北农业大学
关键词: 凝胶渗透色谱,气相串联质谱,海产品,多氯联苯,农药
英文关键词: GPC,GC-MS/MS,marine product,poly chlorinated biphenyls,pesticides
刊名: 中国食品学报
英文刊名: Journal of Chinese Institute of Food Science and Technology
ISSN: 1009-7848
卷号: 005
基金: ^A国家质检总局科技计划项目^B(2011IK197)^D1%^A公益性行业科研专项经费^B(201205031)^D2
页码: 169-179
分类号: O657.63%TS254.7
摘要: 建立海产品中34种多氯联苯和76种农药气相色谱-串联质谱分析方法.用乙腈为萃取溶剂,均质法均质提取样品,盐析法除水,凝胶渗透色谱净化,收集26~50 min流出液,在线浓缩.用气相色谱柱(DB-1701)分离后,在多离子反应监测模式(MRM)下进行质谱检测.在1.0~500μg/kg范围内线性关系良好(R2﹥0.99),方法检出限(LOD)0.05~108.43μg/kg.空白样品添加回收率51.6%~120.5%,相对标准偏差范围0.84%~24.5%,回收率60%~110%,目标化合物为106种.该方法通用性强,选择性好,灵敏度、准确度和精密度均符合多残留检测的技术要求,适用于动物源性海产品中多残留的日常检测.
英文摘要: A gel permeation chromatography(GPC)-Gas Chromatography-tandem Mass Spectrometry(GC-MS/MS) method combined was developed for the simultaneous determination of 34 Poly Chlorinated Biphenyls(PCBS) and 76 residual analysis of pesticides in marine product. The samples were extracted with acetonitrile, dehydrated with salting out method and cleaned-up by gel permeation chromatography(GPC). The GPC eluant collected from 26 min to 50 min was concentrated to 1 mL, then analyzed using GC-MS/MS. A DB-1701 column was ...