同步荧光法同时快速测定水中多环芳烃混合物

建立同时快速测定2,3-苯并芴、苯并a]芘和苝3种多环芳烃的同步荧光法.选择波长差Δλ=26 nm,只需一次扫描,就可实现3个组分的同时鉴别和定量测定.2,3-苯并芴、苯并a]芘和苝的线性范围分别为0.02～50 ng·mL-1、0.05～200 ng·mL-1和0.1～400 ng·mL-1,检出限分别为0.003 5ng·mL-1、0.002 1 ng·mL-1和0.006 0 ng·mL-1.该方法简单快速,灵敏度高,线性范围宽,用于各种实际水样的分析,获得很好的效果.

Simultaneous and rapid determination of polycyclic aromatic hydrocarbons mixtures in water via synchronous fluorescence spectrometry

A synchronous fluorescence spectrometry for simultaneous and rapid determination of three polycyclic aromatic hydrocarbons(PAHs) 2,3-benzofluorene(2,3-BF),benzoa]pyrene(BaP) and perylene(Pery) has been developed.Three PAHs could be simultaneously identified and quantitatively determined with single scanning when △λ was 26 nm.The linear ranges for 2,3-benzofluorene,benzoa]pyrene and perylene were 0.02-50 ng·mL-1,0.05-200 ng·mL-1 and 0.1-400 ng·mL-1,with the detection limits of 0.003 5 ng·mL-1,0.002 1 ng·mL-1 and 0.006 0 ng·mL-1,respectively.This method was characterized hy its simplicity,rapidness,sensitivity and wide linear range.The proposed method had been applied to the analysis of the three PAHs in different water samples with satisfied results.