环境与职业医学2017，Vol.34Issue(4)：341-349,9.DOI:10.13213/j.cnki.jeom.2017.16723
吹扫捕集-气质联用法同时测定生活饮用水中86种挥发性有机物
Determination of 86 volatile organic compounds in drinking water using purge and trap in combination with gas chromatography-mass spectrometry
摘要
Abstract
[Objective] To establish a method for determination of 86 volatile organic compounds in drinking water.[Methods] By optimizing purge and trap conditions (purge temperature,purge time,and desorption time) and gas chromatography-mass spectrometry conditions (qualitative and quantitative ion selection),as well as using selected ion monitoring mode and internal standard method,a method of purge and trap in combination with gas chromatography-mass spectrometry was established for rapid determination of 86 volatile organic compounds including difluorodichloromethane,chloromethane,and vinylchloride.[Results] The studied 86 volatile organic compounds were well separated,with the detection limits of the method between 0.03-0.1 μg/L,the average recovery rates between 75.1％-114％,and the relative standard deviations between 0.33％-12.3％.[Conclusion] The proposed method is featured by high throughput,sensitivity,precision,accuracy,and convenience,and short analytical cycle;therefore,it is suitable for simultaneous determination of various volatile organic compounds in drinking water.关键词
吹扫捕集/气相色谱-质谱联用法/选择离子监测/挥发性有机物/生活饮用水Key words
purge and trap/gas chromatography-mass spectrometry/selected ion monitoring/volatile organic compounds/drinking water分类
医药卫生引用本文复制引用
李琰,丁克颖,宁文吉..吹扫捕集-气质联用法同时测定生活饮用水中86种挥发性有机物[J].环境与职业医学,2017,34(4):341-349,9.基金项目
上海市闵行区自然科学研究课题专项资金(编号:2014MHZ043) （编号:2014MHZ043）
