Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole

Detalhes bibliográficos
Autor(a) principal: Pereira,Francisco C.
Data de Publicação: 2001
Outros Autores: Stradiotto,Nelson R., Zanoni,Maria Valnice B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532001000200013
Resumo: The reduction of clotrimazole at a mercury electrode, in phosphate buffer, pH>6, involves a reversible one-electron process. The electrochemical process presents a large contribution from adsorption effects. For the differential pulse polarographic determination the addition of Triton X-100 is recommended. Clotrimazole can be determined by cathodic stripping voltammetry at 50 ng mL-1 level when pre-accumulated for 3 min at an accumulation potential of -0.20 V. The proposed method is applied successfully for the determination of clotrimazole in a commercial formulation.
id SBQ-2_ab818698e762a8ecaef7ca7da4fb5d97
oai_identifier_str oai:scielo:S0103-50532001000200013
network_acronym_str SBQ-2
network_name_str Journal of the Brazilian Chemical Society (Online)
repository_id_str
spelling Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazoleclotrimazolecyclic voltammetrydifferential pulse polarographycathodic stripping voltammetryThe reduction of clotrimazole at a mercury electrode, in phosphate buffer, pH>6, involves a reversible one-electron process. The electrochemical process presents a large contribution from adsorption effects. For the differential pulse polarographic determination the addition of Triton X-100 is recommended. Clotrimazole can be determined by cathodic stripping voltammetry at 50 ng mL-1 level when pre-accumulated for 3 min at an accumulation potential of -0.20 V. The proposed method is applied successfully for the determination of clotrimazole in a commercial formulation.Sociedade Brasileira de Química2001-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532001000200013Journal of the Brazilian Chemical Society v.12 n.2 2001reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532001000200013info:eu-repo/semantics/openAccessPereira,Francisco C.Stradiotto,Nelson R.Zanoni,Maria Valnice B.eng2001-07-02T00:00:00Zoai:scielo:S0103-50532001000200013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2001-07-02T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole
title Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole
spellingShingle Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole
Pereira,Francisco C.
clotrimazole
cyclic voltammetry
differential pulse polarography
cathodic stripping voltammetry
title_short Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole
title_full Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole
title_fullStr Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole
title_full_unstemmed Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole
title_sort Electrochemical reduction and cathodic stripping voltammetric determination of clotrimazole
author Pereira,Francisco C.
author_facet Pereira,Francisco C.
Stradiotto,Nelson R.
Zanoni,Maria Valnice B.
author_role author
author2 Stradiotto,Nelson R.
Zanoni,Maria Valnice B.
author2_role author
author
dc.contributor.author.fl_str_mv Pereira,Francisco C.
Stradiotto,Nelson R.
Zanoni,Maria Valnice B.
dc.subject.por.fl_str_mv clotrimazole
cyclic voltammetry
differential pulse polarography
cathodic stripping voltammetry
topic clotrimazole
cyclic voltammetry
differential pulse polarography
cathodic stripping voltammetry
description The reduction of clotrimazole at a mercury electrode, in phosphate buffer, pH>6, involves a reversible one-electron process. The electrochemical process presents a large contribution from adsorption effects. For the differential pulse polarographic determination the addition of Triton X-100 is recommended. Clotrimazole can be determined by cathodic stripping voltammetry at 50 ng mL-1 level when pre-accumulated for 3 min at an accumulation potential of -0.20 V. The proposed method is applied successfully for the determination of clotrimazole in a commercial formulation.
publishDate 2001
dc.date.none.fl_str_mv 2001-04-01
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=S0103-50532001000200013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532001000200013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532001000200013
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 Journal of the Brazilian Chemical Society v.12 n.2 2001
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
_version_ 1750318164231585792

Registros relacionados