四种多环芳烃的三维荧光谱解析  

Three-dimensional Fluorescence Spectral Analysis of Four Kinds of Polycyclic Aromatic Hydrocarbons

作　　者：金丹[1] 张玉钧[1] 李国刚[2] 肖雪[1] 王志刚[3] 殷高方[1] 赵南京[1] 刘文清[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室,安徽合肥230031 [2]中国环境监测总站,北京100029 [3]扬州大学环境科学与工程学院,江苏扬州225009

出　　处：《大气与环境光学学报》2008年第6期448-453,共6页Journal of Atmospheric and Environmental Optics

基　　金：国家"863"计划资助项目(2007AA061502)

摘　　要：多环芳烃(PAHs)是普遍关注的优先监测污染物,在水环境中其含量很低,但由于其具有高荧光量子产率,可利用荧光法对其进行检测。运用三维荧光光谱法对四种多环芳烃的荧光光谱进行了解析,较二维荧光光谱能更详细地描述PAHs的性质。实验表明:菲与蒽均有三个较强的荧光区域;芘有多个荧光区域;荧蒽有两个荧光区域。菲、蒽、芘和荧蒽的最大荧光峰分别位于250/364 nm、250/402 nm、240/372 nm及286/462 nm。选择最大荧光峰值位置对四种多环芳烃做工作曲线,呈现较好的线性关系。该方法为同时检测水源中多组分痕量PAHs提供了方法基础。As a universal concern about the monitoring of priority pollutants, polycyclic aromatic hydrocarbons （PAHs） have low content in the water environment. Because of its high fluorescence quantum yields, the fluorescence spectra of PAHs can be used to investigate PAHs concentration. Fluorescence spectra of four kinds of PAHs were analyzed with the method of three-dimensional fluorescence spectra, which can desSribe the characteristics of PAHs more detailedly than two-dimensional fluorescence spectra. Results show that phenanthrene, anthracene have three stronger fluorescence regions, and pyrene, fiuoranthene have several and two fluorescence regions, respectively. The biggest fluorescence peaks of phenanthrene, anthracene, pyrene and fluoranthene are 250/364 nm, 250/402 nm, 240/372 nm and 286/462 nm, respectively. Under the optimum conditions, good linear work curve was obtained by this method to determine four kinds of PAHs. This method serves to the simultaneous analysis of multi-component PAHs in the source water on a method basis.

关 键 词：三维荧光光谱 多环芳烃 菲 蒽 芘 荧蒽 

分 类 号：X832[环境科学与工程—环境工程]