Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Dessuy, Morgana B.
Data de Publicação: 2007
Outros Autores: Vale, Maria Goreti R., Lepri, Fábio G., Welz, Bernhard, Heitmann, Uwe
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/14495
Resumo: Texto completo: acesso restrito. p. 429-434
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spelling Dessuy, Morgana B.Vale, Maria Goreti R.Lepri, Fábio G.Welz, BernhardHeitmann, UweDessuy, Morgana B.Vale, Maria Goreti R.Lepri, Fábio G.Welz, BernhardHeitmann, Uwe2014-01-28T16:35:10Z20070584-8547http://repositorio.ufba.br/ri/handle/ri/14495v. 62, n. 5Texto completo: acesso restrito. p. 429-434The atomization of phosphorus in electrothermal atomic absorption spectrometry has been investigated using a high-resolution continuum source atomic absorption spectrometer and atomization from a graphite platform as well as from a tantalum boat inserted in a graphite tube. A two-step atomization mechanism is proposed for phosphorus, where the first step is a thermal dissociation, resulting in a fast atomization signal early in the atomization stage, and the second step is a slow release of phosphorus atoms from the graphite tube surface following the adsorption of molecular phosphorus at active sites of the graphite surface. Depending on experimental conditions only one of the mechanisms or both might be active. In the absence of a modifier and with atomization from a graphite or tantalum platform the second mechanism appears to be dominant, whereas in the presence of sodium fluoride as a modifier both mechanisms are observed. Intercalation of phosphorus into the graphite platform in the condensed phase has also been observed; this phosphorus, however, appears to be permanently trapped in the structure of the graphite and does not contribute to the absorption signal.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-01-28T16:35:10Z No. of bitstreams: 1 1-s2.0-S058485470700122X-main.pdf: 454940 bytes, checksum: f80f975404a7e5e57099aef1623f524a (MD5)Made available in DSpace on 2014-01-28T16:35:10Z (GMT). No. of bitstreams: 1 1-s2.0-S058485470700122X-main.pdf: 454940 bytes, checksum: f80f975404a7e5e57099aef1623f524a (MD5) Previous issue date: 2007http://dx.doi.org/10.1016/j.sab.2007.04.008reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAHigh-resolution continuum source atomic absorption spectrometryElectrothermal atomizationPhosphorusAtomization mechanismTantalum boatInvestigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometrySpectrochimica Acta Part B: Atomic Spectroscopyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINAL1-s2.0-S058485470700122X-main.pdf1-s2.0-S058485470700122X-main.pdfapplication/pdf454940https://repositorio.ufba.br/bitstream/ri/14495/1/1-s2.0-S058485470700122X-main.pdff80f975404a7e5e57099aef1623f524aMD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/14495/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXT1-s2.0-S058485470700122X-main.pdf.txt1-s2.0-S058485470700122X-main.pdf.txtExtracted texttext/plain28868https://repositorio.ufba.br/bitstream/ri/14495/3/1-s2.0-S058485470700122X-main.pdf.txta9ac1913d534c0d31ddadab666fd8339MD53ri/144952022-07-05 14:03:12.324oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:12Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry
dc.title.alternative.pt_BR.fl_str_mv Spectrochimica Acta Part B: Atomic Spectroscopy
title Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry
spellingShingle Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry
Dessuy, Morgana B.
High-resolution continuum source atomic absorption spectrometry
Electrothermal atomization
Phosphorus
Atomization mechanism
Tantalum boat
title_short Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry
title_full Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry
title_fullStr Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry
title_full_unstemmed Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry
title_sort Investigation of phosphorus atomization using high-resolution continuum source electrothermal atomic absorption spectrometry
author Dessuy, Morgana B.
author_facet Dessuy, Morgana B.
Vale, Maria Goreti R.
Lepri, Fábio G.
Welz, Bernhard
Heitmann, Uwe
author_role author
author2 Vale, Maria Goreti R.
Lepri, Fábio G.
Welz, Bernhard
Heitmann, Uwe
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Dessuy, Morgana B.
Vale, Maria Goreti R.
Lepri, Fábio G.
Welz, Bernhard
Heitmann, Uwe
Dessuy, Morgana B.
Vale, Maria Goreti R.
Lepri, Fábio G.
Welz, Bernhard
Heitmann, Uwe
dc.subject.por.fl_str_mv High-resolution continuum source atomic absorption spectrometry
Electrothermal atomization
Phosphorus
Atomization mechanism
Tantalum boat
topic High-resolution continuum source atomic absorption spectrometry
Electrothermal atomization
Phosphorus
Atomization mechanism
Tantalum boat
description Texto completo: acesso restrito. p. 429-434
publishDate 2007
dc.date.issued.fl_str_mv 2007
dc.date.accessioned.fl_str_mv 2014-01-28T16:35:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/14495
dc.identifier.issn.none.fl_str_mv 0584-8547
dc.identifier.number.pt_BR.fl_str_mv v. 62, n. 5
identifier_str_mv 0584-8547
v. 62, n. 5
url http://repositorio.ufba.br/ri/handle/ri/14495
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.sab.2007.04.008
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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