Highly selective and sensitive copper(II) membrane coated graphite electrode based on a recently synthesized Schiff's base

被引：107

作者：

Ganjali, MR ^{[1
]}

Poursaberi, T

Babaei, LHA

Rouhani, S

Yousefi, M

Kargar-Razi, M

Moghimi, A

Aghabozorg, H

Shamsipur, M

机构：

[1] Univ Tehran, Dept Chem, Tehran, Iran

[2] Alzahra Univ, Dept Chem, Tehran, Iran

[3] Islamic Azad Univ Tehran, Res Branch, Tehran, Iran

[4] Imam Hossein Univ, Tehran, Iran

[5] Tarbiat Moallem Univ, Dept Chem, Tehran, Iran

[6] Razi Univ, Dept Chem, Khorramshahr, Iran

来源：

ANALYTICA CHIMICA ACTA | 2001年 / 440卷 / 02期

关键词：

copper ion-selective electrode; PVC membrane; graphite; bis-2-thiophenal propanediamine;

D O I：

10.1016/S0003-2670(01)01051-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学]; 081704 [应用化学];

摘要：

A PVC membrane electrode based on bis-2-thiophenal propanediamine (TPDA) coated directly on graphite is described. The electrode exhibits a Nernstian response for Cu2+ over a very wide concentration range (1.0 x 10(-1) to 6.0 x 10(-8) M) with a detection limit of 3.0 x 10(-8) M (2.56 ng ml(-1)). It has a fast response time and can be used for at least 2 months without any major deviation. The proposed sensor revealed very good selectivities for Cu2+ over a wide variety of other metal ions and could be used in the pH range of 3.0-7.0. It was successfully used for direct determination of copper in black tea and as an indicator electrode in potentiometric titration of copper ion. (C) 2001 Elsevier Science B.V All rights reserved.

引用

页码：81 / 87

页数：7

共 37 条

[1]

Copper(II)-selective membrane electrode based on a recently synthesized naphthol-derivative Schiff's base [J].