POLAROGRAPHY AND ANODIC-STRIPPING VOLTAMMETRY OF METAL POLYCARBOXYLATE COMPLEXES - PHENOMENOLOGICAL RELATIONSHIP BETWEEN LIMITING CURRENTS AND HYDRODYNAMIC MASS-TRANSPORT

被引：28

作者：

DIAZCRUZ, JM ^{[1
]}

ARINO, C ^{[1
]}

ESTEBAN, M ^{[1
]}

CASASSAS, E ^{[1
]}

机构：

[1] UNIV BARCELONA,DEPT ANALYT CHEM,AV DIAGONAL 647,E-08028 BARCELONA,SPAIN

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1992年 / 333卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(92)80379-I

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple semi-empirical method is proposed for evaluating a parameter related to the hydrodynamic conditions during the pre-electrolysis step in anodic stripping voltammetry (ASV) measurements over metal-polyelectrolyte systems. The method is based on the comparison of polarographic and stripping voltammetric signals measured in the same system. The results obtained suggest that hydrodynamic conditions are quite similar to convective laminar diffusion. By application of the method, the accuracy of the complexation constants and diffusion coefficients obtained by ASV measurements is improved. The method is applied to the Zn poly(methacrylic acid), Zn-poly(acrylic acid) and Cd-poly(methacrylic acid) systems.

引用

页码：33 / 45

页数：13

共 18 条

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