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.

引用

页码：4752 / 4769

页数：18

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