Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam

Detalhes bibliográficos
Autor(a) principal: Ferreira, Sergio Luis Costa
Data de Publicação: 2001
Outros Autores: Santos, Hilda Costa dos, Jesus, Djane Santiago de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7769
Resumo: Texto completo: acesso restrito. p. 187-190
id UFBA-2_bc4a22051d62b1cbdbd84e8cf8a6cb80
oai_identifier_str oai:repositorio.ufba.br:ri/7769
network_acronym_str UFBA-2
network_name_str Repositório Institucional da UFBA
repository_id_str 1932
spelling Ferreira, Sergio Luis CostaSantos, Hilda Costa dosJesus, Djane Santiago deFerreira, Sergio Luis CostaSantos, Hilda Costa dosJesus, Djane Santiago de2013-01-07T15:12:13Z20010937-0633http://www.repositorio.ufba.br/ri/handle/ri/7769v. 369, n. 2Texto completo: acesso restrito. p. 187-190A procedure is proposed for the separation and determination of molybdenum in iron matrices by a batch process. It is based on the solid-phase extraction of the molybdenum(V) ion as thiocyanate complex on polyurethane (PU) foam. The extraction parameters were optimized. Using 0.20 mol L–1 hydrochloric acid, a thiocyanate concentration of 0.10 mol L–1, 100 mg of polyurethane foam and shaking time of 10 min, molybdenum (5–400 μg) can be separated and preconcentrated from large amounts of iron (10 mg). Desorption was carried out instantaneously by conc. nitric acid or acetone. Distribution coefficients, sorption capacity of the PU foam and coefficients of variation were also evaluated. The effect of some ions on the separation procedure was assessed. Iron(III) should be reduced to iron(II). The proposed procedure was used to determine molybdenum in standard iron matrices such as steel and pure iron. The achieved results did not show significant differences with certified values.Submitted by Suelen Reis (suelen_suzane@hotmail.com) on 2013-01-07T15:12:13Z No. of bitstreams: 1 Ferreira.pdf: 29396 bytes, checksum: 98a9c0d493bacef847534e56b0fb01f9 (MD5)Made available in DSpace on 2013-01-07T15:12:13Z (GMT). No. of bitstreams: 1 Ferreira.pdf: 29396 bytes, checksum: 98a9c0d493bacef847534e56b0fb01f9 (MD5) Previous issue date: 2001http://dx.doi.org/10.1007/s002160000590reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAMolybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foamFresenius' Journal of Analytical Chemistryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINALFerreira.pdfFerreira.pdfapplication/pdf29396https://repositorio.ufba.br/bitstream/ri/7769/1/Ferreira.pdf98a9c0d493bacef847534e56b0fb01f9MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/7769/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTFerreira.pdf.txtFerreira.pdf.txtExtracted texttext/plain16898https://repositorio.ufba.br/bitstream/ri/7769/3/Ferreira.pdf.txt7b646a48f798088f80ced94778420293MD53ri/77692022-08-08 13:17:58.766oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:58Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam
dc.title.alternative.pt_BR.fl_str_mv Fresenius' Journal of Analytical Chemistry
title Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam
spellingShingle Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam
Ferreira, Sergio Luis Costa
title_short Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam
title_full Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam
title_fullStr Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam
title_full_unstemmed Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam
title_sort Molybdenum determination in iron matrices by ICP-AES after separation and preconcentration using polyurethane foam
author Ferreira, Sergio Luis Costa
author_facet Ferreira, Sergio Luis Costa
Santos, Hilda Costa dos
Jesus, Djane Santiago de
author_role author
author2 Santos, Hilda Costa dos
Jesus, Djane Santiago de
author2_role author
author
dc.contributor.author.fl_str_mv Ferreira, Sergio Luis Costa
Santos, Hilda Costa dos
Jesus, Djane Santiago de
Ferreira, Sergio Luis Costa
Santos, Hilda Costa dos
Jesus, Djane Santiago de
description Texto completo: acesso restrito. p. 187-190
publishDate 2001
dc.date.issued.fl_str_mv 2001
dc.date.accessioned.fl_str_mv 2013-01-07T15:12:13Z
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/7769
dc.identifier.issn.none.fl_str_mv 0937-0633
dc.identifier.number.pt_BR.fl_str_mv v. 369, n. 2
identifier_str_mv 0937-0633
v. 369, n. 2
url http://www.repositorio.ufba.br/ri/handle/ri/7769
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/10.1007/s002160000590
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
bitstream.url.fl_str_mv https://repositorio.ufba.br/bitstream/ri/7769/1/Ferreira.pdf
https://repositorio.ufba.br/bitstream/ri/7769/2/license.txt
https://repositorio.ufba.br/bitstream/ri/7769/3/Ferreira.pdf.txt
bitstream.checksum.fl_str_mv 98a9c0d493bacef847534e56b0fb01f9
1b89a9a0548218172d7c829f87a0eab9
7b646a48f798088f80ced94778420293
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)
repository.mail.fl_str_mv
_version_ 1793970079734431744

Registros relacionados