Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy

Detalhes bibliográficos
Autor(a) principal: Sighinolfi, G.Paolo
Data de Publicação: 1979
Outros Autores: Santos, Adelaide M., Martinelli, Giovanni
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/9198
Resumo: Texto completo. Acesso restrito. p. 143–145
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spelling Sighinolfi, G.PaoloSantos, Adelaide M.Martinelli, GiovanniSighinolfi, G.PaoloSantos, Adelaide M.Martinelli, Giovanni2013-03-23T14:21:15Z2013-03-23T14:21:15Z19790039-9140http://www.repositorio.ufba.br/ri/handle/ri/9198v. 26, n. 2Texto completo. Acesso restrito. p. 143–145method is described for the determination of tellurium at nanogram levels in rocks and in other complex materials by the use of flameless atomic-absorption spectroscopy. A very selective organic extraction procedure is applied to avoid matrix interference effects during extraction of Tc and the atomization stage in the graphite furnace. Prior separation of iron and other interfering elements is achieved by a combined cupferron-ethyl acetate extraction. Tellerium is extracted from 6M hydrochloric acid with MIBK and stripped into aqueous medium. Pipetting of the aqueous extract into the graphite furnace gives fairly good instrumental reproducibility (2-3x, error). Detection limits of about 10 ppM Te for a 0.5-g sample have been achieved with the medium-performance apparatus used. Results for Te in some geochemical reference materials are reported. Indications arc given for the determination of Sb and MO in the same solutions.Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-02-26T15:41:27Z No. of bitstreams: 1 11.pdf: 234326 bytes, checksum: a524fc2b174da3e570b112eb42e980ca (MD5)Approved for entry into archive by Rodrigo Meirelles(rodrigomei@ufba.br) on 2013-03-23T14:21:15Z (GMT) No. of bitstreams: 1 11.pdf: 234326 bytes, checksum: a524fc2b174da3e570b112eb42e980ca (MD5)Made available in DSpace on 2013-03-23T14:21:15Z (GMT). No. of bitstreams: 1 11.pdf: 234326 bytes, checksum: a524fc2b174da3e570b112eb42e980ca (MD5) Previous issue date: 1979SalvadorTalantahttp://dx.doi.org/10.1016/0039-9140(79)80233-7reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBADetermination of tellurium in geochemical materials by flameless atomic-absorption spectroscopyTalantainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINAL11.pdf11.pdfapplication/pdf234326https://repositorio.ufba.br/bitstream/ri/9198/1/11.pdfa524fc2b174da3e570b112eb42e980caMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/9198/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT11.pdf.txt11.pdf.txtExtracted texttext/plain3https://repositorio.ufba.br/bitstream/ri/9198/3/11.pdf.txt2228e977ebea8966e27929f43e39cb67MD53ri/91982022-07-05 14:02:59.985oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:02:59Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy
dc.title.alternative.pt_BR.fl_str_mv Talanta
title Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy
spellingShingle Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy
Sighinolfi, G.Paolo
title_short Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy
title_full Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy
title_fullStr Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy
title_full_unstemmed Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy
title_sort Determination of tellurium in geochemical materials by flameless atomic-absorption spectroscopy
author Sighinolfi, G.Paolo
author_facet Sighinolfi, G.Paolo
Santos, Adelaide M.
Martinelli, Giovanni
author_role author
author2 Santos, Adelaide M.
Martinelli, Giovanni
author2_role author
author
dc.contributor.author.fl_str_mv Sighinolfi, G.Paolo
Santos, Adelaide M.
Martinelli, Giovanni
Sighinolfi, G.Paolo
Santos, Adelaide M.
Martinelli, Giovanni
description Texto completo. Acesso restrito. p. 143–145
publishDate 1979
dc.date.issued.fl_str_mv 1979
dc.date.accessioned.fl_str_mv 2013-03-23T14:21:15Z
dc.date.available.fl_str_mv 2013-03-23T14:21:15Z
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://www.repositorio.ufba.br/ri/handle/ri/9198
dc.identifier.issn.none.fl_str_mv 0039-9140
dc.identifier.number.pt_BR.fl_str_mv v. 26, n. 2
identifier_str_mv 0039-9140
v. 26, n. 2
url http://www.repositorio.ufba.br/ri/handle/ri/9198
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.publisher.none.fl_str_mv Talanta
publisher.none.fl_str_mv Talanta
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/0039-9140(79)80233-7
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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instname_str Universidade Federal da Bahia (UFBA)
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reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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