Copper(II)-selective electrode based on dithioacetal

被引：51

作者：

Abbaspour, A ^{[1
]}

Kamyabi, MA ^{[1
]}

机构：

[1] Shiraz Univ, Dept Chem, Shiraz 71454, Iran

来源：

ANALYTICA CHIMICA ACTA | 2002年 / 455卷 / 02期

关键词：

PVC; 1,3-dithiane,2-(4-methoxy phenyl); NPOE; copper; ISE;

D O I：

10.1016/S0003-2670(01)01622-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A PVC membrane electrode for copper ion based on 1,3-dithiane,2-(4-methoxy phenyl) as ionophore and o-nitrophenyl octyl ether as a plasticizer is demonstrated. The electrode exhibits a Nernstian slope of 29.5 +/- 1 mV per decade in a linear range of 3.0 x 10(-6) to 5.0 x 10(-2) M for Cu2+ ion. The detection limit of this electrode is 1.0 x 10(-6) molA. This sensor has a very short response time of about 5 s and could be used in a pH range of 4.0-7.0. High selectivity was obtained over a wide variety of metal ions. The proposed electrode was successfully applied as an indicator electrode for the potentiometric titration of copper ion with EDTA and for the direct determination of copper in river water. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：225 / 231

页数：7

共 45 条

[11]

2-J

[12] Selectivity of potentiometric ion sensors [J].