Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem
Autor(a) principal: | |
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Data de Publicação: | 1997 |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421997000200011 |
Resumo: | 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. |
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Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagemchemically modified electrodeelectroanalysisChemically 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.Sociedade Brasileira de Química1997-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421997000200011Química Nova v.20 n.2 1997reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40421997000200011info:eu-repo/semantics/openAccessSouza,Maria de Fátima Britopor2008-09-17T00:00:00Zoai:scielo:S0100-40421997000200011Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2008-09-17T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem |
title |
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem |
spellingShingle |
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem Souza,Maria de Fátima Brito chemically modified electrode electroanalysis |
title_short |
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem |
title_full |
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem |
title_fullStr |
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem |
title_full_unstemmed |
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem |
title_sort |
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagem |
author |
Souza,Maria de Fátima Brito |
author_facet |
Souza,Maria de Fátima Brito |
author_role |
author |
dc.contributor.author.fl_str_mv |
Souza,Maria de Fátima Brito |
dc.subject.por.fl_str_mv |
chemically modified electrode electroanalysis |
topic |
chemically modified electrode electroanalysis |
description |
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. |
publishDate |
1997 |
dc.date.none.fl_str_mv |
1997-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421997000200011 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421997000200011 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.1590/S0100-40421997000200011 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.20 n.2 1997 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318100082851840 |