三维荧光光谱法测定水中氯苯的研究

doi:10.3964/j.issn.1000-0593(2011)07-1823-05

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摘要：对三维荧光光谱法测定水中氯苯(简称CB)进行了研究。研究表明，CB的三维荧光谱图只有一个荧光峰，该峰位于激发波长(λ_ex)210～240 nm、发射波长(λ_em)330～370 nm范围内.当CB溶液浓度为0.002～0.05 mg·L^-1时，λ_ex/λ_em为225/340 nm处荧光强度最大。在此波长处，荧光强度与浓度呈很好的线性相关，相关系数为0.999 67，表明三维荧光光谱法可用于定量分析水中的CB。该方法在置信水平为90%时的检出限为3.68×10^-6 mg·L^-1，标准偏差为0.04%。

关键词：三维荧光光谱;氯苯;荧光强度;定量分析

Abstract：Quantitative analysis of chlorobenzene (CB) in water by three-dimensional fluorescence spectrometry was discussed in the present paper. The study showed that there is only one fluorescence peak for CB which lies in the range of excitation wavelength (λ_ex) 210～240 nm and emission wavelength (λ_em) 330～370 nm. When measuring CB solution of concentration 0.002~0.05 mg·L^-1, the fluorescence intensity was the strongest as λ_ex/λ_em was 225/340 nm, which presented linear correlation with concentration, and the related coefficient was 0.999 67. The study proved that three-dimensional fluorescence spectrometry can be adopted for quantitative analysis of CB in water. With this method, the detection limit was 3.68×10^-6 mg·L^-1 and the standard deviation was 0.04% at 90% confidence level.

Key words：Three-dimensional fluorescence spectra;Chlorobenzene;Fluorescence intensity;Quantitative analysis

收稿日期: 2010-09-16 修订日期: 2010-12-15

中图分类号:

X830.2

通讯作者: 王业耀 E-mail: yeyaowang@163.com;wangyy@craes.org.cn

引用本文:

于海斌¹，王业耀^2*，宋存义¹ . 三维荧光光谱法测定水中氯苯的研究[J]. 光谱学与光谱分析, 2011, 31(07): 1823-1827.
YU Hai-bin¹, WANG Ye-yao^2*, SONG Cun-yi¹ . Study of Three-Dimensional Fluorescence Spectra for Measuring Chlorobenzene in Water. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(07): 1823-1827.

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