Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Murillo,Miguel
Data de Publicação: 2008
Outros Autores: Carrión,Nereida, Colmenares,Jorge, Romero,Juan, Alvarado,Gladys, Ríos,Manuel, Angulo,Freddy
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600008
Resumo: An evaluation of the performance of a continuous flow hydride generator-nebulizer for flame atomic absorption spectrometry was carried out. Optimization of nebulizer gas flow rate, sample acid concentration, sample and tetrahydroborate uptake rates and reductant concentration, on the As and Se absorbance signals was carried out. A hydrogen-argon flame was used. An improvement of the analytical sensitivity relative to the conventional bead nebulizer used in flame AA was obtained (2 (As) and 4.8 (Se) µg L-1). Detection limits (3σb) of 1 (As) and 1.3 (Se) µg L-1 were obtained. Accuracy of the method was checked by analyzing an oyster tissue reference material.
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spelling Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometrynebulizer-hydride generationarsenicseleniumAn evaluation of the performance of a continuous flow hydride generator-nebulizer for flame atomic absorption spectrometry was carried out. Optimization of nebulizer gas flow rate, sample acid concentration, sample and tetrahydroborate uptake rates and reductant concentration, on the As and Se absorbance signals was carried out. A hydrogen-argon flame was used. An improvement of the analytical sensitivity relative to the conventional bead nebulizer used in flame AA was obtained (2 (As) and 4.8 (Se) µg L-1). Detection limits (3σb) of 1 (As) and 1.3 (Se) µg L-1 were obtained. Accuracy of the method was checked by analyzing an oyster tissue reference material.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600008Química Nova v.31 n.6 2008reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422008000600008info:eu-repo/semantics/openAccessMurillo,MiguelCarrión,NereidaColmenares,JorgeRomero,JuanAlvarado,GladysRíos,ManuelAngulo,Freddyeng2008-10-10T00:00:00Zoai:scielo:S0100-40422008000600008Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2008-10-10T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
title Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
spellingShingle Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
Murillo,Miguel
nebulizer-hydride generation
arsenic
selenium
title_short Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
title_full Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
title_fullStr Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
title_full_unstemmed Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
title_sort Design and evaluation of a continuous flow, integrated nebulizer-hydride generator for flame atomic absorption spectrometry
author Murillo,Miguel
author_facet Murillo,Miguel
Carrión,Nereida
Colmenares,Jorge
Romero,Juan
Alvarado,Gladys
Ríos,Manuel
Angulo,Freddy
author_role author
author2 Carrión,Nereida
Colmenares,Jorge
Romero,Juan
Alvarado,Gladys
Ríos,Manuel
Angulo,Freddy
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Murillo,Miguel
Carrión,Nereida
Colmenares,Jorge
Romero,Juan
Alvarado,Gladys
Ríos,Manuel
Angulo,Freddy
dc.subject.por.fl_str_mv nebulizer-hydride generation
arsenic
selenium
topic nebulizer-hydride generation
arsenic
selenium
description An evaluation of the performance of a continuous flow hydride generator-nebulizer for flame atomic absorption spectrometry was carried out. Optimization of nebulizer gas flow rate, sample acid concentration, sample and tetrahydroborate uptake rates and reductant concentration, on the As and Se absorbance signals was carried out. A hydrogen-argon flame was used. An improvement of the analytical sensitivity relative to the conventional bead nebulizer used in flame AA was obtained (2 (As) and 4.8 (Se) µg L-1). Detection limits (3σb) of 1 (As) and 1.3 (Se) µg L-1 were obtained. Accuracy of the method was checked by analyzing an oyster tissue reference material.
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=S0100-40422008000600008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422008000600008
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.6 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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