硝酸银滴定法和离子色谱法测定水中氯化物的比对分析
Comparative Analysis and Determination of Chloride in Water by Silver Nitrate Titration and Ion Chromatography
王芳1
作者信息
- 1. 朔州市生态环境局平鲁分局, 山西 朔州 036800
- 折叠
摘要
采用硝酸银滴定法和离子色谱法对水中氯化物进行测定,并对取样量、检测时间、精密度、准确度进行比对分析.结果显示,硝酸银滴定法取样量多,但测定时间相对较短;而离子色谱法取样量少,可实现多种离子的同时检测;两种方法的相对标准偏差分别为 3.6%、0.5%,加标回收率分别为 90.0%～107%、100%～110%,均满足质控要求.
Abstract
In this paper,the determination of chloride in water is by silver nitrate titration and ion chromatography.At the same time,the sample volume,determination time,precision and accuracy of the two methods are researched deeply and analysis comparatively in this paper.Comparing with silver nitrate titration,ion chromatography has less sample volume and more determination time.Ion chromatography can be used to simultaneous detection of different ion.The relative standard deviation is 3.6%and the standard recovery rate is between 90.0%and 107%by silver nitrate titration.The relative standard deviation is 0.5%and the standard recovery rate is between 100%and 110%by ion chromatography.The results indicate that the specific measurements of the two methods both meet the requirements of quality control.
关键词
氯化物/水质监测/硝酸银滴定法/离子色谱法Key words
chloride/water quality monitoring/silver nitrate titration/ion chromatography引用本文复制引用
出版年
2024
NETL
NSTL
万方数据