Effect of carboxylate compounds on the electrochemical behavior of dopamine at a mercury electrode

Journal of the Brazilian Chemical Society

Eduardo Winter¹  Rosangela M. De Carvalho¹  Lauro T. Kubota¹  Susanne Rath¹ 

[1] ,Universidade Estadual de Campinas Instituto de Química Campinas SP ,Brazil

关键词: dopamine;    electrochemical behavior;    carboxylate compounds;    mercury electrode;   

DOI  :  10.1590/S0103-50532003000400012

来源: SciELO

【 摘 要 】

The electrochemical oxidation of dopamine leads to deposition of polymeric films on the surfaces of solid state electrodes, decreasing the electrode activity. With a mercury electrode, the oxidation of dopamine occurs in the potential region of mercury oxidation. However, in the presence of carboxylic compounds the cyclic voltammogram of dopamine is different and presents a new electroactive product resulting from the oxidation of dopamine. This work describes preliminary results for the electrochemical behavior of dopamine at the Hg-electrode in the presence of acetate, citrate and EDTA.

【 授权许可】

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