摘要
系统分析了ＥＤＴＡ容量法测定硫酸根离子的误差产生环节，并对各个环节提出了相应的误差控制办法。文中着重分析了由移液过程和滴定过程所产生的误差，最后指出，作为测定硫酸根离子的方法标准，ＥＤＴＡ容量法无法保证应有的精度。
The procedures which give rise to error in determining SO 2- 4 by EDTA volume method are analysed,and relevant measures to control them are given in this paper.The error results from the procedures of removing liquid and titration are analysed paticularly.At the end of the paper,authers point out that EDTA volume method can not guarantee the due determination precision and should be replaced by ion chromatography as a standard method.
出处
《中国环境监测》
CAS
CSSCI
CSCD
北大核心
1999年第1期48-50,共3页
Environmental Monitoring in China
