Cyclam modified carbon paste electrode as a potentiometric sensor for determination of cobalt(II) ions

被引：0
|
作者：
Pouretedal, HR [1 ]
Keshavarz, MH [1 ]
机构：
[1] Malek Ashtar Univ Technol, Dept Chem, Shahin Shahr 115, Iran
来源：
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2005年 / 21卷 / 01期
关键词：
carbon paste electrode; cyclam; potentiometry; cobalt;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new modified carbon paste electrode based on cyclam as a modifier was prepared for the determination of Co(I) ions. The proposed electrode shows a Nernstian slope 28.4 mV per decade over a wide concentration range 5.0 X 10(-6) - 1.0 X 10(-1) mol/L of Co2+ ions with detection limit 2.5 X 10(-6) mol/L. The sensor exhibits good selectivities for Co2+ over a wide variety of other cations. It can be used as an indicator electrode in potentiometric titration of cobalt(I) ions as well as in direct determination of cobalt(I) ions in wastewater of acidic cobalt electroplating bath. The electrode shows Nernestian behavior in a solution of 25% ethanol.
引用
收藏
页码：28 / 31
页数：4
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