生活饮用水中54种持久性有机污染物的液液微萃取结合气相色谱质谱测定法  

Determination of 54 persistent organic pollutants in drinking water by gas chromatography-mass spectrometry after liquid-liquid microextraction

作　　者：李佳伟[1] 张学[2] 李旻 余静[1] 高蓉[1] LI Jia-wei;ZHANG Xue;LI Min;YU Jing;GAO Rong(Department of Hygienic Analysis and Detection,School of Public Health,Nanjing Medical University,Nanjing Jiangsu,2111661 China;Department of Physical and Chemical Inspection,Jiashan,Centre for Disease Control and Prevention,Jiaxing Zhejiang,314100,China)

机构地区：[1]南京医科大学公共卫生学院卫生检验系,江苏南京211166 [2]嘉兴市嘉善县疾病预防控制中心检验科,浙江嘉兴314100

出　　处：《职业与健康》2022年第9期1186-1192,共7页Occupation and Health

基　　金：嘉兴市嘉善县县级社科项目(2020A35)。

摘　　要：目的建立内标法-液液微萃取(liquid liquid microextraction,LLME)结合气相色谱质谱测定生活饮用水中54种持久性有机污染物(persistent organic pollutants,POPs)的分析方法。方法管网水样经微量异辛烷提取离心后,气相色谱质谱法(gas chromatography-mass spectrometry,GC-MS)检测,内标法及工作曲线法定量。结果54种POPs线性范围宽,线性相关系数良好,检出限低,加标回收率为75.1%~109.8%,相对标准偏差为2.1%~8.2%。结论该方法环保、快捷,准确,适用于生活饮用水中54种POPs的检测。Objective To develop an analytical method for the determination of 54 persistent organic pollutants(POPs)in drinking water by internal standard method-liquid-liquid microextraction(LLME)combined with gas chromatography-mass spectrometry.Methods Drinking water samples were extracted with trace isooctane and then determined by gas chromatography-mass spectrometry(GC-MS),and finally quantified by internal standard method and the working curves.Results The method showed wide linear ranges,good correlation coefficients(r2)and low detection limits for the 54 POPs.The recoveries were 75.1%-109.8%,and the relative standard derivations ranged from 2.1%to 8.2%.Conclusion The method is environmentally friendly,rapid and accurate,which is suitable for the determination of 54 POPs in drinking water.

关 键 词：持久性有机污染物 液液微萃取 气相色谱质谱 生活饮用水 

分 类 号：R115[医药卫生—公共卫生与预防医学]