Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/8287
Title: Electrochemical Oxidation of Rutin
Authors: Ghica, Mariana-Emilia 
Brett, Ana Maria Oliveira 
Issue Date: 2005
Citation: Electroanalysis. 17:4 (2005) 313-318
Abstract: An electrochemical investigation of rutin oxidation on a glassy carbon electrode was carried out using cyclic voltammetry, differential pulse voltammetry and square-wave voltammetry over a wide pH interval. The electrochemical oxidation is a complex process, which proceeds in a cascade mechanism, related with the 4-hydroxyl groups of the rutin molecule. The catechol 3prime,4prime-dihydroxyl group is the first to be oxidized by a two-electron - two-proton reversible oxidation reaction, followed by an irreversible oxidation reaction due to the 5,7-dihydroxyl group. Both mechanisms are pH dependent. An adsorption process is also observed and the oxidation products block the electrode surface.
URI: http://hdl.handle.net/10316/8287
DOI: 10.1002/elan.200403100
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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