连续流动分析测定生活饮用水中高锰酸盐指数
Determination of Permanganate Index in Drinking Water by Continuous Flow Analysis
张凌 1罗菊霞 1刘智1
作者信息
- 1. 川庆钻探工程公司安全环保质量监督检测研究院 四川 广汉 618300
- 折叠
摘要
介绍了使用连续流动分析技术测定生活饮用水中高锰酸盐指数,说明了测定方法的原理、试剂和仪器参数指标.通过实验所得的校准曲线相关系数r=0.9996,方法检出限为0.03mg/L,方法精密度在2.0%～2.7%之间.该方法适用于大批量水样的分析,与国标酸性高锰酸钾滴定法相比,检出限更低,操作更加简便、快捷,符合生活饮用水中高锰酸盐指数测定的要求.
Abstract
The permanganate index is one of the important indexes that reflect the oxidation ability of organic matter and the degree of water pollution in water bodies.This article introduces the use of continuous flow analysis technology to measure the permanganate index in drinking water,and explains the principle,reagent,and instrument parameter indicators of this method.The correlation coefficient of the calibration curve obtained through experiments is 0.9996,the detection limit of the method is 0.03mg/L,and the precision of the method is between 2.0%and 2.7%.Compared with the national standard potassium permanganate titration,this method has a lower detection limit,a simpler and faster operation,and is suitable for the analysis of large batches of water samples,meeting the requirements for the determination of permanganate index in drinking water.
关键词
连续流动分析/生活饮用水/高锰酸盐指数/检出限/精密度Key words
Continuous flow analysis/Drinking water/Permanganate index/Detection limit/Precision引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据