Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet

Detalhes bibliográficos
Autor(a) principal: Costa, Antonio Celso Spinola
Data de Publicação: 1995
Outros Autores: Teixeira, Leonardo Sena Gomes, Ferreira, Sergio Luis Costa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/8478
Resumo: Texto completo: acesso restrito. p.1973–1978
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spelling Costa, Antonio Celso SpinolaTeixeira, Leonardo Sena GomesFerreira, Sergio Luis CostaCosta, Antonio Celso SpinolaTeixeira, Leonardo Sena GomesFerreira, Sergio Luis Costa2013-02-18T14:39:40Z19950039-9140http://www.repositorio.ufba.br/ri/handle/ri/8478v. 42, n. 12Texto completo: acesso restrito. p.1973–1978In the present paper, a new procedure using Pyrocatechol Violet (PCV) for the determination of tin in copper-based alloys is proposed. The use of HEDTA as masking agent allowed tin to be determined in the presence of large amounts of copper, without any separation procedure. The method is more selective than previous methods. Cetyltrimethylammonium bromide (CTAB) and Tween-20 are used to increase the stability of the system. The method can be applied directly to an acidic solution of Sn(IV) in the range 2.0–60.0 μg with a final volume of 50 ml. The pH is adjusted to 2.0 ± 0.2 with glycine buffer and, after 30 min, the absorbance is measured at 660 nm. Al(III), Cd(II), Co(II), Mg(II), Ca(II), Mn(II), Ni(II) and Pb(II) do not interfere at the 500 mg level; 20 000 μg of Cu(II) and 400 μg of NaCl can be present. The interference at 100 μg of Fe(III) can be masked with ascorbic acid. Bi(III), Sb(V), Ti(IV), Mo(VI), EDTA, tartrate, citrate and iodide interfere. The proposed method was used for tin determination in several copper-based alloys and a comparison of the analytical results with certified values indicates that the procedure provides accurate and precise results.Submitted by Suelen Reis (suelen_suzane@hotmail.com) on 2013-02-18T14:39:39Z No. of bitstreams: 1 Costa.pdf: 649239 bytes, checksum: 81c43aabcb8e48cf29e8fe847cc521af (MD5)Made available in DSpace on 2013-02-18T14:39:40Z (GMT). No. of bitstreams: 1 Costa.pdf: 649239 bytes, checksum: 81c43aabcb8e48cf29e8fe847cc521af (MD5) Previous issue date: 1995http://dx.doi.org/10.1016/0039-9140(95)01677-5reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBACopper-based alloysPyrocatechol VioletSpectrophotometric analysisTin determinationSpectrophotometric determination of tin in copper-based alloys using pyrocatechol violetTalantainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINALCosta.pdfCosta.pdfapplication/pdf649239https://repositorio.ufba.br/bitstream/ri/8478/1/Costa.pdf81c43aabcb8e48cf29e8fe847cc521afMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/8478/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTCosta.pdf.txtCosta.pdf.txtExtracted texttext/plain0https://repositorio.ufba.br/bitstream/ri/8478/3/Costa.pdf.txtd41d8cd98f00b204e9800998ecf8427eMD53ri/84782022-07-05 14:02:49.508oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:02:49Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet
dc.title.alternative.pt_BR.fl_str_mv Talanta
title Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet
spellingShingle Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet
Costa, Antonio Celso Spinola
Copper-based alloys
Pyrocatechol Violet
Spectrophotometric analysis
Tin determination
title_short Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet
title_full Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet
title_fullStr Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet
title_full_unstemmed Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet
title_sort Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet
author Costa, Antonio Celso Spinola
author_facet Costa, Antonio Celso Spinola
Teixeira, Leonardo Sena Gomes
Ferreira, Sergio Luis Costa
author_role author
author2 Teixeira, Leonardo Sena Gomes
Ferreira, Sergio Luis Costa
author2_role author
author
dc.contributor.author.fl_str_mv Costa, Antonio Celso Spinola
Teixeira, Leonardo Sena Gomes
Ferreira, Sergio Luis Costa
Costa, Antonio Celso Spinola
Teixeira, Leonardo Sena Gomes
Ferreira, Sergio Luis Costa
dc.subject.por.fl_str_mv Copper-based alloys
Pyrocatechol Violet
Spectrophotometric analysis
Tin determination
topic Copper-based alloys
Pyrocatechol Violet
Spectrophotometric analysis
Tin determination
description Texto completo: acesso restrito. p.1973–1978
publishDate 1995
dc.date.issued.fl_str_mv 1995
dc.date.accessioned.fl_str_mv 2013-02-18T14:39:40Z
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/8478
dc.identifier.issn.none.fl_str_mv 0039-9140
dc.identifier.number.pt_BR.fl_str_mv v. 42, n. 12
identifier_str_mv 0039-9140
v. 42, n. 12
url http://www.repositorio.ufba.br/ri/handle/ri/8478
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/10.1016/0039-9140(95)01677-5
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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