A bromide ion-selective polymeric membrane electrode based on a benzo-derivative xanthenium bromide salt

被引：47

作者：

Shamsipur, M ^{[1
]}

Rouhani, S

Mohajeri, A

Ganjali, MR

Rashidi-Ranjbar, P

机构：

[1] Razi Univ, Dept Chem, Kermanshah, Iran

[2] Bou Ali Sina Univ, Dept Chem, Hamadan, Iran

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

来源：

ANALYTICA CHIMICA ACTA | 2000年 / 418卷 / 02期

关键词：

bromide ion-selective electrode; 14-phenyldibenzo[a; j]xanthenium bromide; PVC membrane; potentiometry;

D O I：

10.1016/S0003-2670(00)00954-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel bromide ion-selective PVC membrane sensor based on 14-phenyldibenzo [a]xanthenium bromide as a membrane carrier was prepared. The electrode has a linear dynamic range between 1.0x10(-1) and 3.2x 10(-5) M with a near-Nernstian slope of 61+/-1 mV per decade and a detection limit of 2.0x10(-5) M. The potentiometric response is independent of the pH of the solution in the pH range 4.5-8.5. The electrode possesses the advantages of low resistance, fast response and good selectivities over a variety of other anions. It was applied as an indicator electrode in potentiometric titration of bromide ions. (C) 2000 Elsevier Science B.V All rights reserved.

引用

页码：197 / 203

页数：7

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