Estudo da adsorção de brometo de etídeo em resina XAD-7

Detalhes bibliográficos
Autor(a) principal: Oliveira,Mônica Winkler de
Data de Publicação: 2009
Outros Autores: Hilsdorf,Alexandre W. S., Silva,Astréa F. de Souza, Oliveira,André Fernando
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000500010
Resumo: The adsorption of ethidium bromide on XAD-7 resin was studied. The Freundlich model was the most representative isotherm model to describe the sorption behavior. A solid-liquid equilibrium model was proposed to explain the resin mass influence on the sorption. The equilibrium constant value estimated was 2.31. The results showed an ethidium bromide ion-pair physical adsorption, with adsorption enthalpy equals to -19.33 kJ/mol. A pK2 value equals to 4.69 ± 0.01 was estimated by two distinct methods. The results will be applied to the ethidium bromide preconcentration aiming its decomposition.
id SBQ-3_412c3e17c7edfda6aec0a55bd2a88907
oai_identifier_str oai:scielo:S0100-40422009000500010
network_acronym_str SBQ-3
network_name_str Química Nova (Online)
repository_id_str
spelling Estudo da adsorção de brometo de etídeo em resina XAD-7ethidium bromideXAD-7 resinadsorption isothermThe adsorption of ethidium bromide on XAD-7 resin was studied. The Freundlich model was the most representative isotherm model to describe the sorption behavior. A solid-liquid equilibrium model was proposed to explain the resin mass influence on the sorption. The equilibrium constant value estimated was 2.31. The results showed an ethidium bromide ion-pair physical adsorption, with adsorption enthalpy equals to -19.33 kJ/mol. A pK2 value equals to 4.69 ± 0.01 was estimated by two distinct methods. The results will be applied to the ethidium bromide preconcentration aiming its decomposition.Sociedade Brasileira de Química2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000500010Química Nova v.32 n.5 2009reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422009000500010info:eu-repo/semantics/openAccessOliveira,Mônica Winkler deHilsdorf,Alexandre W. S.Silva,Astréa F. de SouzaOliveira,André Fernandopor2009-07-30T00:00:00Zoai:scielo:S0100-40422009000500010Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2009-07-30T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Estudo da adsorção de brometo de etídeo em resina XAD-7
title Estudo da adsorção de brometo de etídeo em resina XAD-7
spellingShingle Estudo da adsorção de brometo de etídeo em resina XAD-7
Oliveira,Mônica Winkler de
ethidium bromide
XAD-7 resin
adsorption isotherm
title_short Estudo da adsorção de brometo de etídeo em resina XAD-7
title_full Estudo da adsorção de brometo de etídeo em resina XAD-7
title_fullStr Estudo da adsorção de brometo de etídeo em resina XAD-7
title_full_unstemmed Estudo da adsorção de brometo de etídeo em resina XAD-7
title_sort Estudo da adsorção de brometo de etídeo em resina XAD-7
author Oliveira,Mônica Winkler de
author_facet Oliveira,Mônica Winkler de
Hilsdorf,Alexandre W. S.
Silva,Astréa F. de Souza
Oliveira,André Fernando
author_role author
author2 Hilsdorf,Alexandre W. S.
Silva,Astréa F. de Souza
Oliveira,André Fernando
author2_role author
author
author
dc.contributor.author.fl_str_mv Oliveira,Mônica Winkler de
Hilsdorf,Alexandre W. S.
Silva,Astréa F. de Souza
Oliveira,André Fernando
dc.subject.por.fl_str_mv ethidium bromide
XAD-7 resin
adsorption isotherm
topic ethidium bromide
XAD-7 resin
adsorption isotherm
description The adsorption of ethidium bromide on XAD-7 resin was studied. The Freundlich model was the most representative isotherm model to describe the sorption behavior. A solid-liquid equilibrium model was proposed to explain the resin mass influence on the sorption. The equilibrium constant value estimated was 2.31. The results showed an ethidium bromide ion-pair physical adsorption, with adsorption enthalpy equals to -19.33 kJ/mol. A pK2 value equals to 4.69 ± 0.01 was estimated by two distinct methods. The results will be applied to the ethidium bromide preconcentration aiming its decomposition.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
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=S0100-40422009000500010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000500010
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422009000500010
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.32 n.5 2009
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_ 1750318109137305600

Registros relacionados