摘要
本文报道了以二甲基磺基偶氮Ⅲ为试剂，硫酸根离子与试剂－钡离子的络合物发生反应测定了水中低含量的硫酸根离子。
Sulphate ion in environmental water samples was successfully determined by flow injection spectrophotometry,based on the reaction with barium dimethylsulphonazo(Ⅲ) complex.The linear range is 1—4mg/L,the recoveries are 95—106%, relative standard deviation is 1 5%(n=10) and the precision of the procedure for long time(about 4h) <5%, respectively.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1998年第5期590-592,共3页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金
