A lead (II)-selective PVC membrane based on a Schiff base complex of N,N'-bis(salicylidene)-2,6-pyridinediamine

被引：79

作者：

Jeong, T ^{[1
]}

Lee, HK ^{[1
]}

Jeong, DC ^{[1
]}

Jeon, S ^{[1
]}

机构：

[1] Chonnam Natl Univ, Inst Basic Sci, Dept Chem, Kwangju 500757, South Korea

来源：

TALANTA | 2005年 / 65卷 / 02期

关键词：

polymeric membrane; lead ion; ion-selective electrode; N,N'-bis(salicylidene)-2,6-pyridinediamine; Schiff base;

D O I：

10.1016/j.talanta.2004.07.016

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

PVC membrane electrodes for lead ion based on N,N'-bis(salicylidene)-2,6-pyridinediamine as membrane carrier were prepared. Among their membranes. a membrane electrode (m-3) containing o-NPOE as a plasticizer and 50 mol% additive displays an excellent Nernstian response (29.4 mV/decade) and the limit of detection of -log a (M) = 6.04 to Pb2+ in Pb(NO3)(2) solutions at room temperature. It has a rapid response nine within 10 s over the entire concentration range. The proposed electrode revealed good selectivity and response for W over a wide variety of other metal ions in a pH 5.0 buffer Solutions, and good reproducibility of base line in subsequent measurements. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：543 / 548

页数：6

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