摘要
本文用阳极溶出伏安法研究氨羧配合物,采用最小二乘曲线拟合和统计权重平均等程序处理实验数据,测定了三乙四胺六乙酸(TTHA)、氨三乙酸(NTA)和乙二胺四乙酸(EDTA)与Pb(Ⅱ)、Cd(Ⅱ)和Zn(Ⅱ)离子所生成的配合物的稳定常数和组成。测定结果与文献值相符。
Anodic stripping voltammetry method was used in the study of metal chelates.The systems of Pb(Ⅱ),Cd(Ⅱ)and Zn(Ⅱ)with EDTA,Pb(Ⅱ)with NTA and Pb(Ⅱ),Cd(Ⅱ)with TTHA have been investigated.The components of these chelates were determined and the stability constants were calculated.They are in good agreement with literature results.
作者
杭太俊
彭慈贞
Hang Taijun;Peng Cizhen(Department of Chemistry,Nanjing University,Narijing)
出处
《高等学校化学学报》
SCIE
EI
CAS
1988年第7期676-680,共5页
Chemical Journal of Chinese Universities
关键词
阳极溶出
稳定常数
配合物
最小二乘法
Anodic stripping
Stability constants
Metal chelate
Least square method
