摘要
针对采用GB/T 5750.11—2006生活饮用水标准检验方法中的3,3′,5,5′-四甲基联苯胺目视比色法检测余氯时出现的问题,探讨了四甲基联苯胺配制的介质浓度及配制方法,以及pH值、温度、显色时间、显色剂用量等因素对测定过程的影响,改进了生活饮用水中余氯的测定方法。
In order to solve the problems of 3,3′,5,5′-tetramethyl benzidine visual colorimetry in GB/T 5750.11—2006 standard in determination of residual chlorine in drinking water,this paper discusses the media concentration in preparation of tetramethyl benzidine and the preparation methods,as well as pH,temperature,developing time,color rendering dosage and other factors,which is better than the traditional determination method.
出处
《河北工业科技》
CAS
2013年第4期297-300,共4页
Hebei Journal of Industrial Science and Technology
关键词
余氯
四甲基联苯胺
目视比色法
residual chlorine
tetramethyl benzidine
visual colorimetry
