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液液萃取-气质联用法测定饮用水源地水中SVOCs
引用本文:吴丽娟,杨丽莉,胡恩宇,王美飞,王天任,沈敏.液液萃取-气质联用法测定饮用水源地水中SVOCs[J].环境监测管理与技术,2014,26(1):35-38.
作者姓名:吴丽娟  杨丽莉  胡恩宇  王美飞  王天任  沈敏
作者单位:南京市环境监测中心站;南京市环境监测中心站;南京市环境监测中心站;南京市环境监测中心站;南京市环境监测中心站;南京市环境监测中心站
基金项目:基金项目:〖HTSS〗江苏省环境监测科研基金资助项目(1102)
摘    要:采用乙酸乙酯-正己烷混合溶剂(体积比为2∶1)对饮用水源地水中阿特拉津、林丹、邻苯二甲酸二正丁酯(DBP)、邻苯二甲酸二(2-乙基己基)酯(DEHP)和滴滴涕(含4种)等8种半挥发性有机物进行1次水样萃取,用气质联用法同时测定。试验表明,方法在25.0μg/L~500μg/L范围内线性良好;检出限在0.006μg/L ~0.028μg/L 之间;空白水样3个质量浓度水平的加标回收率为87.6%~109%,平行测定6次的 RSD<5.1%;测定集中式生活饮用水源地的实际水样,未检出目标化合物,加标回收率为98.6%~109%。

关 键 词:半挥发性有机物  液液萃取  气质联用法  水质

Liquid-liquid Extraction and Gas Chromatography Mass Spectrometry for Simultaneous Measurement of Semivolatile Organic Compounds in Water
WU Li-juan,YANG Li-li,HU En-yu,WANG Mei-fei,WANG Tian-ren,SHEN Min.Liquid-liquid Extraction and Gas Chromatography Mass Spectrometry for Simultaneous Measurement of Semivolatile Organic Compounds in Water[J].The Administration and Technique of Environmental Monitoring,2014,26(1):35-38.
Authors:WU Li-juan  YANG Li-li  HU En-yu  WANG Mei-fei  WANG Tian-ren  SHEN Min
Institution:( Nanjing Enviromental Monitoring Centre, Nanjing ,Jiangsu 210013, China)
Abstract:The mixed solvent of ethyl acetate and hexane(V∶V=2∶1 )was used as extraction solvent to de-termine three kinds of semivolatile organic compounds in water.The compounds were impactful separated from each other through DB-1 capillary column (30 m ×0.25 mm ×0.25 μm)and then determined by GC-MS.The linearity ranged from 25.0 μg/L to 500 μg/L.The detection limits ranged from 0.006 μg/L to 0.028 μg/L.The relative bias of replicate measurements of standard solution were less than 5.1%.The average recoveries were within the range of 87.6 %~109 %.
Keywords:SVOCs  Liquid liquid extraction  GC MS  Water quality
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