DETERMINATION OF COBALT ON SURFACTANT-MODIFIED MERCURY-ELECTRODES

被引：12

作者：

EMONS, H

SCHMIDT, T

WERNER, G

机构：

[1] Department of Chemistry, Karl-Marx University Leipzig, Leipzig, 7010

来源：

ANALYTICA CHIMICA ACTA | 1990年 / 228卷 / 01期

关键词：

D O I：

10.1016/S0003-2670(00)80478-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学]; 081704 [应用化学];

摘要：

Cobalt ions can be determined in the presence of interfering matrix components such as zinc ions by applying adsorbed surfactants. The influence of different adsorption layers on the reduction processes of both ions was studied. Selective inhibition of the zinc signal was achieved even with an extremely large zinc(II) to cobalt(II) ratio in solutions such as zinc plating baths after modification of the mercury electrode with adsorbed tetrabutylammonium. The influence of additions of dimethylglyoxime and citrate and pH changes on the cobalt signal was investigated. © 1990.

引用

页码：55 / 60

页数：6

共 19 条

[1]

[Anonymous], ZH ANAL KHIM

[2]

BURGER K, 1966, ACTA CHIM HUNG, V49, P113

[3]

DETERMINATION OF COBALT IN THE PRESENCE OF NICKEL AND OTHER METALS BY DIFFERENTIAL PULSE POLAROGRAPHY IN SOLUTIONS CONTAINING DIMETHYLGLYOXIME AND CITRATE [J].