作者：于洪¹, 许秀艳², 许人骥², 陈烨²

作者单位：1. 乌鲁木齐市环境监测中心站, 新疆 乌鲁木齐 830000;
2. 中国环境监测总站, 北京 100012

关键词：微波萃取;气相色谱/三重四级质谱联用;贝类;有机磷农残

摘要：

建立微波萃取-气相色谱/三重四级质谱法同时测定贝类中8种有机磷农药残留的方法。优化仪器分析条件，研究微波萃取溶剂、萃取温度、保持时间对萃取效果的影响。方法的线性关系良好，目标组分的检出限在0.1~0.2 g/g之间。贝类样品加标的回收率在41.2%~105%之间，相对标准偏差在3.3%~19%之间。该方法综合微波萃取快速高效以及气相色谱/三重四级质谱抗干扰强的优势，可用于贝类样品中有机磷农药残留的痕量分析。

Determination of organophosphorus pesticides in shellfish by gas chromatography-triple quadrupole mass spectrometry with microwave extraction

YU Hong¹, XU Xiuyan², XU Renji², CHEN Ye²

1. Urumqi Environmental Monitoring Centre, Urumqi 830000, China;
2. China National Environmental Monitoring Centre, Beijing 100012, China

Abstract: A gas chromatography-triple quadrupole mass spectrometry(GC/QQQ) method coupled with microwave extraction(ME) was developed for determination of organophosphorus pesticides(OPPs) in shellfish. Instrumental parameters of GC/QQQ were optimized. Affecting factors of ME such as extraction solvent, temperature and holding time were also studied. Linear relationships of the method were good and method detection limits of targets were within range of 0.1-0.2 μg/g. Recoveries of spiked samples were 41.2%-105% and relative standard deviations were 3.3%-19%. Combined advantages of rapidity & efficiency of ME and anti-interference of GC/QQQ, the proposed method could be used for trace analysis of OPPs in shellfish.

Keywords: microwave extraction;gas chromatography/triple quadrupole mass spectrometry;shellfish;organophosphorus pesticides residue

2018, 44(4): 64-68  收稿日期: 2017-12-08;收到修改稿日期: 2018-01-12

基金项目: 水体污染控制与治理科技重大专项（2013ZX00702001）

作者简介: 于洪(1986-),男,四川泸州市人,工程师,主要从事环境有机污染物分析。

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