Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/82560
Type: Artigo de periódico
Title: Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem
Title Alternative: Chemically modified electrodes applyes to electroanalysis: a brief presentation
Author: Souza, Maria de Fátima Brito
Abstract: Chemically modified electrodes (CMEs) have been subject of considerable attention since its inception about 23 years ago. CMEs result of a deliberate immobilization of a modifier agent onto the electrode surface obtained through chemical reactions, chemisorption, composite formation or polymer coating. This immobilization seeks transfer the physicochemical properties of the modifier to the electrode surface and thus to dictate and control the behavior of the electrode/solution interface. In recent years the interest in CMEs has increased particularly to enhance the sensitivity and/or the selectivity of electroanalytical techniques. In general higher sensitivity and/or selectivity may be achieved by exploiting one or more of the following phenomena: electrocatalysis, preconcentration and interferents exclusion. This paper deals with the application of CMEs in electroanalysis, including a brief presentation of the more general procedures that have been employed for the modification of electrode surfaces.
Subject: chemically modified electrode
electroanalysis
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40421997000200011
Address: http://dx.doi.org/10.1590/S0100-40421997000200011
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421997000200011
Date Issue: 1-Apr-1997
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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