摘要
本文对水中游离氯的测定方法HJ 568-2010作出改进。实验优化了试剂与样品的显色时间为1min,通过将磷酸盐-DPD溶液逐一与样品反应的方式测定样品。本文提出的方法具有良好的准确度、重复性,可以满足日常水样检测的需求。
This paper investigates the improvement of free chlorine determination method HJ 568-2010. The reaction time of sample and chromogenic agent optimized in this experiment is 1 min and sample is determined via mixing phosphate – PDP solution with sample one by one. The method proposed in this paper is accurate and repeatable for the testing of conventional samples.
作者
陈元松
刘晓飞
侯明韬
马丹
韩雪红
张瑞艳
CHEN Yuan-song;LIU Xiao-fei;HOU Ming-tao;MA Dan;HAN Xue-hong;ZHANG Rui-yan(China Building Material Testing&Certification Group Co.,Ltd.)
出处
《中国标准化》
2018年第A01期207-209,共3页
China Standardization
关键词
DPD光度法
游离氯
显色时间
DPD spectrophotometry
free chlorine
color time
