余氯测定仪检测校准中显色问题的探讨
刘斌杰,袁晶,李琛,李博
河南省计量科学研究院,郑州 450008
Discussion on the problem of color development in the calibration and detection of residual chlorine meters
刘斌杰,袁晶,李琛,李博
Henan Institute of Metrology, Zhengzhou 450008, China
摘要:对余氯测定仪检测校准中显色问题进行了探讨。参照现行、有效的3 种标准,采用N,N-二乙基对苯二胺光度法的显色原理,用余氯测定仪测量了一系列余氯标准溶液。对余氯测定仪检测校准中遇到的显色问题进行探讨,得出不同标准溶液之间的显色差异,并分析其原因。该探讨为准确测定余氯提供了参考。
Abstract:The colour development in the calibration of residual chlorine analyzer was discussed. A series of
residual chlorine standard solutions were measured by residual chlorine analyzer based on the principle of N, N-diethyl-pphenylenediamine
spectrophotometry according to three current and effective standards. The color development problems
encountered in the test and calibration of residual chlorine analyzer were discussed, and the color difference between
different standard solutions was obtained, and the reasons were analyzed. The discussion provides a reference for the
accurate determination of residual chlorine.
关键词:余氯测定仪;N,N-二乙基对苯二胺;显色反应;标准
Keywords:residual chlorine analyzer; N,N-diethyl-p-phenylenediamine; colour reaction; standard
基金:河南省质量技术监督局科技计划项目(2017zj26),河南省科技厅科技攻关项目(182102311050)
本文引用格式:
刘斌杰,袁晶,李琛,等. 余氯测定仪检测校准中显色问题的探讨[J]. 化学分析计量,2019,28(Z1):72-74.
LIU B J,YUAN J,LI C,et al. Discussion on the problem of color development in the calibration and detection of residual chlorine meters[ J]. Chemical analysis and meterage,2019,28(Z1):72-74.
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