Determination of Microgram Amounts of Copper in Real Samples Using New Modified Carbon Paste Electrode

被引：0
|
作者：
Youssef, Ahmed Fahmy A. [1 ]
Issa, Yousry M. [1 ]
Shehab, Ola R. [1 ]
Sherief, Heba [2 ]
机构：
[1] Cairo Univ, Fac Sci, Dept Chem, Giza 12613, Egypt
[2] Cent Bank Egypt, Giza, Egypt
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2015年 / 10卷 / 06期
关键词：
Carbon paste electrode; Copper (II); Ion-associate; Potentiometry; Cefazoline; POTENTIOMETRIC DETERMINATION; SELECTIVE ELECTRODE; ICP-MS; ION; SENSOR; WATER;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new chemically modified carbon paste electrode (CMCPE) based on copper-Cefazoline, Cu(II)-CFZ, ion-associate has been developed. The electrode exhibits a Nernstian slope of 29.44 mV per decade for Cu(II) ion over a concentration range of 4.01x10(-6)-7.52x10(-3) mol L-1. The electrode has low limit of detection, 6.28x10(-7) mol L-1, fast response time of <= 10 s, highly selective, thermally stable and its potential response is pH independent in the pH range 1.6-5.8. This modified electrode was successfully used in determination of copper (II) in different water samples, milk powder, brass powder, soft drink and tea.
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收藏
页码：4752 / 4769
页数：18
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