VOLTAMMETRIC STUDIES OF COPPER(I) AND COPPER(II) WITH MONOAMINES AT THE IONIC-STRENGTH OF SEAWATER (0.70MNACLO4)

被引：11

作者：

DOSSANTOS, MMC ^{[1
]}

GONCALVES, MLS ^{[1
]}

机构：

[1] Univ Tecn Lisboa, CTR QUIM ESTRUTURAL, INST SUPER TECN, P-1096 LISBON, PORTUGAL

来源：

ELECTROANALYSIS | 1991年 / 3卷 / 02期

关键词：

D O I：

10.1002/elan.1140030210

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The stabilization of copper(I) by some amines was analyzed by voltammetric methods at the ionic strength of seawater (I = 0.7 M NaClO4). The amines studied were ethylamine, diethylamine, triethylamine, ethanolamine, and 5-aminopenthanol. Voltammetric methods were used because copper(I) can be produced electrochemically if the ligands in solution stabilize this oxidation state. Differential pulse polarography (DPP) and voltammetry with platinum rotating disk electrodes (RDE) were employed. Because some of the voltammograms were distorted as a result of adsorption problems, adsorption has been studied by ac polarography. For the experimental conditions of negligible adsorption, the stability constants of copper(II) and copper (I) complexes have been determined.

引用

页码：131 / 138

页数：8

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