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Voltammetry of MnII and CoII in the presence of polymethacrylate

✍ Scribed by Beatriz Cancho; Marco Argudo; Cristina Ariño; Miquel Esteban

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
537 KB
Volume
8
Category
Article
ISSN
1040-0397

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✦ Synopsis

Abstract

Complex formation of Mn^II^ and Co^II^ with polymethacrylic acid (PMA) is studied by differential pulse polarography, normal pulse polarography, reverse pulse polarography, cyclic voltammetry and differential pulse anodic stripping voltammetry. Because of the lack of a model for macromolecular metal systems including M^n+^/M(Hg) couples with irreversible electrochemical behavior, the application of the theoretical model developed for reversible electrochemical systems is tested to the slow Mn^II^/Mn(Hg) and Co^II^/Co(Hg) couples. The quality of the experimental results obtained allows us to calculate the formation constants of the predominating Mn^II^/PMA and Co^II^/PMA complexes and also their dependence on complexation variables.

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