| DPD光谱分析法快速测定水中游离氯浓度 |
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| 引用本文： | 许肖杰,林斌,陈钰清.DPD光谱分析法快速测定水中游离氯浓度[J].光谱学与光谱分析,2004,24(10):1235-1237. |
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| 作者姓名： | 许肖杰 林斌 陈钰清 |
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| 作者单位： | 浙江大学现代光学仪器国家重点实验室,国家光学仪器工程技术研究中心,浙江,杭州,310027;浙江大学现代光学仪器国家重点实验室,国家光学仪器工程技术研究中心,浙江,杭州,310027;浙江大学现代光学仪器国家重点实验室,国家光学仪器工程技术研究中心,浙江,杭州,310027 |
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| 基金项目： | 国家自然科学基金 (30 2 2 70 0 2 )资助项目 |
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| 摘 要： | 采用分光光度计测量了游离氯溶液与氨基-N，N-二乙基苯胺(DPD)试剂反应后溶液在可见光范围内的吸收光谱。讨论了吸收光谱的峰值波长随时间的变化关系，通过对不同浓度溶液的实验，得出了光谱测量误差，此误差值小于0．04％，并采用非线性数据拟合方法对实验数据进行了分析，找出了游离氯浓度与光透过率之间的关系式并给出了评价参数。
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| 关 键 词： | 分光光度法 游离氯 DPD |
| 文章编号： | 1000-0593(2004)10-1235-03 |
| 修稿时间： | 2004年1月18日 |
Determination of Free Chlorine with Spectrophotometric Method Using N,N-diethyl-1,4-Phenylenediamine |
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| XU Xiao-jie,LIN bin,CHEN Yu-qingState Key Lab of Modern Optical Instrumentation.Determination of Free Chlorine with Spectrophotometric Method Using N,N-diethyl-1,4-Phenylenediamine[J].Spectroscopy and Spectral Analysis,2004,24(10):1235-1237. |
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| Authors: | XU Xiao-jie LIN bin CHEN Yu-qingState Key Lab of Modern Optical Instrumentation |
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| Institution: | State Key Lab of Modern Optical Instrumentation, Department of Optical Engineering, Chinese National Engineering & Technology Research Centre for Optical Instrument, Zhejiang University, Hangzhou 310027, China. |
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| Abstract: | In this paper, the absorption spectra of free chlorine in the visible region has been measured after free chlorine in the solution had reacted with N,N-diethyl-1,4-phenylenediamine(DPD). The relation between the absorption spectra and peak wavelength has been discussed. From the experiment of liquor with different concentration, the error of spectral measurement is less than 0.04%. By nonlinear data fitting, the relation between the concentration of free chlorine and the transmittivity has been given. |
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| Keywords: | Spectrophotometry Free chlorine DPD |
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