菲的三维荧光光谱特性研究  

Study on Three-Dimensional Fluorescence Spectra of Phenanthrene

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

机构地区：[1]中国科学院环境光学与技术重点实验室,中国科学院安徽光学精密机械研究所,安徽合肥230031 [2]中国环境监测总站,北京100029 [3]中国科学技术大学地球和空间科学学院,安徽合肥230026

出　　处：《光谱学与光谱分析》2009年第5期1319-1322,共4页Spectroscopy and Spectral Analysis

基　　金：国家“863”计划项目(2007AA061502)资助

摘　　要：多环芳烃(简称PAHs)具有高荧光量子产率,利用三维荧光光谱研究了PAHs中菲的荧光光谱特性。菲具有两个荧光峰。通过对菲的三维荧光光谱的分析,选择在激发波长255nm、发射波长370nm对菲进行定量分析。菲溶液在5.0～250.0ng.mL-1的范围内工作曲线呈线性关系,检出限为3.88ng.mL-1,相对标准偏差为4.23%(n=5),实验还尝试了对自来水样品的测定,测试效果良好,回收率为90.0%～105.4%。该研究为快速检测水源水中痕量PAHs提供了方法基础。According to the high fluorescence quantum yields of polycyclic aromatic hydrocarbons （PAHs）, the fluorescence spectra of phenanthrene were investigated by three dimensional fluorescence excitation-emission matrix（3DEEM）. The results show that the three-dimensional fluorescence spectra of phenanthrene in aqueous solution mainly have two fluorescence peaks. On the basis of three-dimensional fluorescence spectrometry analysis of phenanthrene, the excitation wavelength of 255 nm and emission wavelength of 273 nm were chosen for the quantitative analysis of phenanthrene. The linear range for the determination of phenanthrene was 5.0-250. 0 mg· mL^-1 , its detection limit was 3.88 ng · mL^-1 , and its relative standard deviation was 4. 23% （n=5）. It was a good precision. It has been tested satisfactorily for the determination of artificial sample in tap water. The recoveries are in the range of 90%-105%. The method provided basis for the rapid monitoring of trace PAHs in water.

关 键 词：三维荧光光谱 菲 荧光强度 多环芳烃 

分 类 号：X824[环境科学与工程—环境工程]