Potentiometric anion response of poly(5,15-bis(2-aminophenyl)porphyrin) electropolymerized electrodes

被引：24

作者：

Volf, R ^{[1
]}

Shishkanova, TV ^{[1
]}

Matejka, P ^{[1
]}

Hamplová, M ^{[1
]}

Král, V ^{[1
]}

机构：

[1] Inst Chem Technol, Dept Analyt Chem, CR-16628 Prague 6, Czech Republic

来源：

ANALYTICA CHIMICA ACTA | 1999年 / 381卷 / 2-3期

关键词：

porphyrin; metalloporphyrin; electropolymerization; ion-selective electrodes; anion binding;

D O I：

10.1016/S0003-2670(98)00742-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The preparation of novel poly(porphyrin) film based on the 5,15-bis(2-aminophenyl) porphyrin from aqueous solutions with and without porphyrin core modification is reported. Anion-selective binding for inorganic ions was found to be in the order: Sal(-) < F- < CH3COO- approximate to ClO4- < SO42- approximate to Cl- < SCN- < NO3- < I- and SO42- < F- < Sal(-) < CLO4- < CH3COO- < NO3- < Cl- < SCN- < I- respectively, for the free base film (not complexed) and the poly(porphyrin) film complexed with metal. The potentiometric selectivity patterns reflect different response mechanisms of the polymerized electrode: 1. ion-exchange for not complexed film, and 2. selective axial ligation between metal center and certain anion for poly(porphyrin) film complexed with metal. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：197 / 205

页数：9

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