Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations

Detalhes bibliográficos
Autor(a) principal: Teixeira, Leonardo Sena Gomes
Data de Publicação: 2001
Outros Autores: Costa, Antonio Celso Spinola, Assis, Júlio César Rosa, Ferreira, Sergio Luis Costa, Korn, Mauro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7787
Resumo: Texto completo: acesso restrito. p. 29-33
id UFBA-2_ff37a344aef20688edd175973fd7fc15
oai_identifier_str oai:repositorio.ufba.br:ri/7787
network_acronym_str UFBA-2
network_name_str Repositório Institucional da UFBA
repository_id_str 1932
spelling Teixeira, Leonardo Sena GomesCosta, Antonio Celso SpinolaAssis, Júlio César RosaFerreira, Sergio Luis CostaKorn, MauroTeixeira, Leonardo Sena GomesCosta, Antonio Celso SpinolaAssis, Júlio César RosaFerreira, Sergio Luis CostaKorn, Mauro2013-01-10T12:51:56Z20010026-3672http://www.repositorio.ufba.br/ri/handle/ri/7787v. 137, n. 1-2Texto completo: acesso restrito. p. 29-33A new sensitive method exploiting solid-phase spectrophotometry is proposed for the determination of cobalt in pharmaceutical preparations. The chromogenic reagent 1-(2-thiazolylazo)-2-naphthol (TAN) was immobilized on C18 bonded silica loaded into a home-made cell with 1.5 mm of optical path for cobalt determination. Cobalt(II) reacts with TAN on C18 material, at pH 6.0–7.5, to give a coloured complex which has maximum absorption at 572 nm. In this way, the sample was passed through the cell and Co(II) ions were quantitatively retained on the solid-phase. After the direct measurement of light-absorption in the solid phase, only the cobalt was eluted with 0.1 mol L−1 hydrochloric acid. The cell was washed with water and then another sample solution could be passed through the cell. The procedure allowed the determination of cobalt in the range of 10–160 μg L−1 with coefficient of variation of 4.7% (n=10) and apparent molar absorptivity of 2.62 × 106 L mol−1 cm−1 using sample volume of 3-mL.Submitted by Suelen Reis (suelen_suzane@hotmail.com) on 2013-01-10T12:51:56Z No. of bitstreams: 1 Teixeira.pdf: 173375 bytes, checksum: e02058cdb7a20b0af1cec18456d8742f (MD5)Made available in DSpace on 2013-01-10T12:51:56Z (GMT). No. of bitstreams: 1 Teixeira.pdf: 173375 bytes, checksum: e02058cdb7a20b0af1cec18456d8742f (MD5) Previous issue date: 2001http://dx.doi.org/10.1007/s006040170024reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBACobalt determinationsolid-phase spectrophotometry1-(2-thiazolylazo)-2-naphtholpharmaceutical preparationsSolid phase spectrophotometry for the determination of cobalt in pharmaceutical preparationsMicrochimica Actainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINALTeixeira.pdfTeixeira.pdfapplication/pdf173375https://repositorio.ufba.br/bitstream/ri/7787/1/Teixeira.pdfe02058cdb7a20b0af1cec18456d8742fMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/7787/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTTeixeira.pdf.txtTeixeira.pdf.txtExtracted texttext/plain19120https://repositorio.ufba.br/bitstream/ri/7787/3/Teixeira.pdf.txtf9d57e074b2698518fa33ec197916512MD53ri/77872022-07-05 14:03:11.862oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:11Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations
dc.title.alternative.pt_BR.fl_str_mv Microchimica Acta
title Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations
spellingShingle Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations
Teixeira, Leonardo Sena Gomes
Cobalt determination
solid-phase spectrophotometry
1-(2-thiazolylazo)-2-naphthol
pharmaceutical preparations
title_short Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations
title_full Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations
title_fullStr Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations
title_full_unstemmed Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations
title_sort Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations
author Teixeira, Leonardo Sena Gomes
author_facet Teixeira, Leonardo Sena Gomes
Costa, Antonio Celso Spinola
Assis, Júlio César Rosa
Ferreira, Sergio Luis Costa
Korn, Mauro
author_role author
author2 Costa, Antonio Celso Spinola
Assis, Júlio César Rosa
Ferreira, Sergio Luis Costa
Korn, Mauro
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Teixeira, Leonardo Sena Gomes
Costa, Antonio Celso Spinola
Assis, Júlio César Rosa
Ferreira, Sergio Luis Costa
Korn, Mauro
Teixeira, Leonardo Sena Gomes
Costa, Antonio Celso Spinola
Assis, Júlio César Rosa
Ferreira, Sergio Luis Costa
Korn, Mauro
dc.subject.por.fl_str_mv Cobalt determination
solid-phase spectrophotometry
1-(2-thiazolylazo)-2-naphthol
pharmaceutical preparations
topic Cobalt determination
solid-phase spectrophotometry
1-(2-thiazolylazo)-2-naphthol
pharmaceutical preparations
description Texto completo: acesso restrito. p. 29-33
publishDate 2001
dc.date.issued.fl_str_mv 2001
dc.date.accessioned.fl_str_mv 2013-01-10T12:51:56Z
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/7787
dc.identifier.issn.none.fl_str_mv 0026-3672
dc.identifier.number.pt_BR.fl_str_mv v. 137, n. 1-2
identifier_str_mv 0026-3672
v. 137, n. 1-2
url http://www.repositorio.ufba.br/ri/handle/ri/7787
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/s006040170024
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/7787/1/Teixeira.pdf
https://repositorio.ufba.br/bitstream/ri/7787/2/license.txt
https://repositorio.ufba.br/bitstream/ri/7787/3/Teixeira.pdf.txt
bitstream.checksum.fl_str_mv e02058cdb7a20b0af1cec18456d8742f
1b89a9a0548218172d7c829f87a0eab9
f9d57e074b2698518fa33ec197916512
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_ 1808459415005691904

Registros relacionados