恒波长同步荧光同时测定1，2-苯并蒽、苯并[K]芴和3．4，8．9-二苯并芘

Constant-Wavelength Synchronous Fluorescence Spectrometry for Simultaneous Determination of 1,2-Benzoanthracene, Benzo[ K] fluorene and 3.4,8.9-Dibenzopyrene

为检测多环芳烃，采用了1，2-苯并蒽（1，2-BA）、苯并[K]芴（BkF）和3．4，8．9-二苯并芘（DBP）恒波长同步荧光分析法，选择波长差△λ=30nm，只需一次扫描，就可实现3组分的同时鉴别和定量测定．该方法简便、快速、灵敏，无需预分离，用于自来水、海水和溪水的分析，取得了良好的效果．

In order to detect PAHS, a new method of constant-wavelength synchronous fluorescence to determine 1,2-benzoanthracene, benzo [k]fluorene and 3.4, 8.9-dibenzopyrene simultaneously is suggested. Only a single scan is needed for the simultaneous identification and quantitative determination of the three PAHS when △λ = 30 nm is chosen. This method is simple, rapid and sensitive, and doesn＇ t need separation. It is used to analyze tap water, sea water, brook water, the good results are get.