Electrooxidación de glifosato sobre electrodos de níquel y cobre

Detalhes bibliográficos
Autor(a) principal: Sierra,Edgar Virgilio
Data de Publicação: 2008
Outros Autores: Méndez,Manuel Alejandro, Sarria,Víctor Manuel, Cortés,María Teresa
Tipo de documento: Artigo
Idioma: spa
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000200006
Resumo: The electrochemical oxidation of glyphosate on an electrode of nickel and on one of copper was studied. With both electrodes electrochemical signals related to the glyphosate concentration were observed. However, the behaviour of the copper electrode was much better than that of the nickel electrode. A calibration curve was obtained of the electrical signal of this electrode as a function of the glyphosate concentration. The detection limit was 30 µM. In the case of nickel, an increase in the oxidation signal, which is related to the glyphosate concentration, was obtained. However, the results were less reproducible and additional information is necessary to propose an interaction mechanism between glyphosate and the electrode.
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spelling Electrooxidación de glifosato sobre electrodos de níquel y cobreglyphosateelectrochemistrycopperThe electrochemical oxidation of glyphosate on an electrode of nickel and on one of copper was studied. With both electrodes electrochemical signals related to the glyphosate concentration were observed. However, the behaviour of the copper electrode was much better than that of the nickel electrode. A calibration curve was obtained of the electrical signal of this electrode as a function of the glyphosate concentration. The detection limit was 30 µM. In the case of nickel, an increase in the oxidation signal, which is related to the glyphosate concentration, was obtained. However, the results were less reproducible and additional information is necessary to propose an interaction mechanism between glyphosate and the electrode.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000200006Química Nova v.31 n.2 2008reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422008000200006info:eu-repo/semantics/openAccessSierra,Edgar VirgilioMéndez,Manuel AlejandroSarria,Víctor ManuelCortés,María Teresaspa2009-09-25T00:00:00Zoai:scielo:S0100-40422008000200006Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2009-09-25T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrooxidación de glifosato sobre electrodos de níquel y cobre
title Electrooxidación de glifosato sobre electrodos de níquel y cobre
spellingShingle Electrooxidación de glifosato sobre electrodos de níquel y cobre
Sierra,Edgar Virgilio
glyphosate
electrochemistry
copper
title_short Electrooxidación de glifosato sobre electrodos de níquel y cobre
title_full Electrooxidación de glifosato sobre electrodos de níquel y cobre
title_fullStr Electrooxidación de glifosato sobre electrodos de níquel y cobre
title_full_unstemmed Electrooxidación de glifosato sobre electrodos de níquel y cobre
title_sort Electrooxidación de glifosato sobre electrodos de níquel y cobre
author Sierra,Edgar Virgilio
author_facet Sierra,Edgar Virgilio
Méndez,Manuel Alejandro
Sarria,Víctor Manuel
Cortés,María Teresa
author_role author
author2 Méndez,Manuel Alejandro
Sarria,Víctor Manuel
Cortés,María Teresa
author2_role author
author
author
dc.contributor.author.fl_str_mv Sierra,Edgar Virgilio
Méndez,Manuel Alejandro
Sarria,Víctor Manuel
Cortés,María Teresa
dc.subject.por.fl_str_mv glyphosate
electrochemistry
copper
topic glyphosate
electrochemistry
copper
description The electrochemical oxidation of glyphosate on an electrode of nickel and on one of copper was studied. With both electrodes electrochemical signals related to the glyphosate concentration were observed. However, the behaviour of the copper electrode was much better than that of the nickel electrode. A calibration curve was obtained of the electrical signal of this electrode as a function of the glyphosate concentration. The detection limit was 30 µM. In the case of nickel, an increase in the oxidation signal, which is related to the glyphosate concentration, was obtained. However, the results were less reproducible and additional information is necessary to propose an interaction mechanism between glyphosate and the electrode.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01
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=S0100-40422008000200006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000200006
dc.language.iso.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv 10.1590/S0100-40422008000200006
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.31 n.2 2008
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
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