基于PARAFAC算法的三维荧光光谱法测定四种混合芳香烃  

Simultaneous Determination of Four Components of Polycyclic Aromatic Hydrocarbons Based on PARAFAC Model of Three-Dimensional Fluorescence Spectroscopy

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

机构地区：[1]上海市环境监测中心,上海200030 [2]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 [3]中国环境监测总站,北京100029

出　　处：《大气与环境光学学报》2010年第4期276-282,共7页Journal of Atmospheric and Environmental Optics

基　　金：国家"863"计划项目(2007AA061502);安徽省自然科学基金(090415215)资助

摘　　要：三维荧光光谱法是描述荧光强度同时随激发波长和发射波长变化的关系谱图,能提供更完整的荧光光谱信息。PARAFAC算法是对不同荧光物质的光谱进行分离,可以从复杂混合成分的三维荧光光谱数据矩阵中将其各自的特征荧光光谱分解出来。将PARAFAC算法与三维荧光光谱法结合,探究了两组分和四组分荧光光谱严重重叠的菲、蒽、芘和荧蒽混合芳烃溶液的分离检测方法,得到了良好的测试效果。Three-dimensional fluorescence spectrometry described the relationship between fluorescence intensity and the wavelength of emission and excitation. More information of fluorescence spectrum can be provided.Characteristic fluorescence spectrum can be obtained by dividing data matrix of three-dimensional fluorescence spectra from complex mixture by the parallel factor analysis （PARAFAC） model, which can separate the spectrum from different kinds of fluorescence matters. By means of PARAFAC model and three-dimensional fluorescence spectroscopy, the determination of four components with overlapping spectra is described. It has been tested satisfactorily for the analysis of two binary and a quadruplex mixtures consisting of phenanthrene, anthracene, pyrene and fluoranthrene.

关 键 词：三维荧光光谱法 菲 蒽 芘 荧蒽 

分 类 号：X832[环境科学与工程—环境工程]