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Comportamento eletroquímico da N-nitrosotiazolidina ácido carboxílico sobre eletrodos de ouro e mercúrio

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Summary:The electrochemical behavior of N-nitrosothiazolidine carboxylic acid (NTAC) on gold and hanging mercury electrodes, using the cyclic and square wave voltammetries, was studied. Whereas NTAC suffer reduction in a single step on the mercury electrode, two peaks appears on the cyclic voltammograms on the gold electrode, one anodic peak overlaying the gold oxide process at 1.2 V and one cathodic peak at -0.41 V vs Ag/AgCl, KCl 3.0 mol L-1. The cathodic peak depends on the previous oxidation of NTAC at the electrode surface, presents irreversible and adsorption controlled characteristics and it is suitable for quantitative purposes.
Main Authors:Codognoto,Lucia
Other Authors:Reyes,Felix G. R.; Winter,Eduardo; Rath,Susanne
Subject:N-nitrosothiazolidine carboxylic acid voltammetry gold electrode
Year:2008
Country:Brazil
Document type:article
Access type:open access
Associated institution:IBICT
Language:Portuguese
Origin:Oasisbr

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