气相色谱串联质谱法测定水中的多环芳烃  

Determination of Polynuclear Aromatic Hydrocarbons in Water Samples by Gas Chromatography-Mass Spectrometry Method

作　　者：蔡素婷[1,2] 杨三明[2] 郭志顺[2] 

机构地区：[1]重庆大学城市建设与环境工程学院,重庆400030 [2]重庆市环境监测中心,重庆401147

出　　处：《三峡环境与生态》2012年第3期16-20,36,共6页Environment and Ecology in the Three Gorges

基　　金：水专项之子课题水环境质量监测技术方法研究(2009ZX07527-001)资金资助

摘　　要：采用菲-d10为内标,通过优化气相色谱、质谱条件,建立了同时测定水体中萘、苊烯、苊、苯并[a]蒽、屈、苯并[b]荧蒽、苯并[k]荧蒽、苯并[a]芘等16种多环芳烃(PAHs)的多离子反应监测(MRM)模式的气相色谱串联质谱法。16种PAHs标准曲线线性关系良好,相关系数r均不小于0.999,相对标准偏差(RSD,n=7)为2.76%～6.13%,检出限在7.51×10-7～5.4×10-5mg/L范围内。该方法快速、简便、灵敏度好、准确度高,满足环境水样中多环芳烃的测定要求。A comprehensive analytical method based on gas chromatography tandem mass spectrometry （GC/MS/ MS） has been developed for the determination of 16 kinds of polycyclic aromatic hydrocarbons （Naphthalene, Ace- naphthylene, Acenaphthene, Anthracene , Benzo（b） fluoranthene , Benzo （k） fluoranthene , Benzo（g, h, i） perylene , Benzo（a）pyrene , Chrysene , Dibenzo（a,h）anthracene , Fluranthene , Fluorene , Indeno（1,2,3-c,d）pyrene , Phe nanthrene , Pyrene ,benzo[a]anthracene）. In order to minimize the influences from changes in operating conditions to improve the accuracy of the measurements, the Philippines-d10 was put into the sample as internal test. Moreo- ver, the experiments was optimized accoriding to working condition improvements. Experiments results suggest the linear coefficiency for each PAHs appears to be good, with correlation coefficients is higher than 0. 999. The RSDs（n =7） range between 2.76% and 6.13%, and detection limits lies between 7.51×10^-7 mg/L and 5.4×10^-7 mg/L. The method is rapid, simple, sensitive, accurate and to meet the water determination of PAHs.

关 键 词：多离子反应监测模式 多环芳烃 气相色谱串联质谱 

分 类 号：X832[环境科学与工程—环境工程]