Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants

Detalhes bibliográficos
Autor(a) principal: Teixeira, Leonardo Sena Gomes
Data de Publicação: 1999
Outros Autores: Costa, Antonio Celso Spinola, Ferreira, Sergio Luis Costa, Freitas, Maria de Lourdes, Carvalho, Marcelo Souza de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/12394
Resumo: p. 519-522
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spelling Teixeira, Leonardo Sena GomesCosta, Antonio Celso SpinolaFerreira, Sergio Luis CostaFreitas, Maria de LourdesCarvalho, Marcelo Souza deTeixeira, Leonardo Sena GomesCosta, Antonio Celso SpinolaFerreira, Sergio Luis CostaFreitas, Maria de LourdesCarvalho, Marcelo Souza de2013-07-31T20:55:53Z2013-07-31T20:55:53Z19990103-5053http://www.repositorio.ufba.br/ri/handle/ri/12394v. 10, n. 6p. 519-522A sensitive and selective spectrophotometric method is proposed for the rapid determination of uranium using 2-(2- Thiazolylazo)-p-Cresol (TAC). The reaction between TAC and uranium (VI) is instantaneous at pH 6.5 and the absorbance remains stable for over 3 h. N-cetyl-N,N,N-trimethylamonium bromide (CTAB) and triton X-100 are used for increasing the sensitivity and solubility of the system respectively. The method allows the determination of uranium in the range from 0.30 to 12.0 mg mL-1 with a molar absorptivity of 1.31 x 104 L mol-1 cm-1 and features a detection limit of 26 ng mL-1 at 588 nm. The selectivity of the reagent was improved by the use of (1,2-cyclohexylenedinitrilo) tetraacetic acid (CyDTA) as masking agent. The proposed method has been successfully applied to the determination of uranium in mine drainage waters. The precision (R.S.D. < 2%) and the accuracy obtained were satisfactory.Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-07-31T20:55:53Z No. of bitstreams: 1 9999999999999999999aaa.pdf: 41590 bytes, checksum: c61a8804631f046e03bbf63fb9befcc4 (MD5)Made available in DSpace on 2013-07-31T20:55:53Z (GMT). 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dc.title.pt_BR.fl_str_mv Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants
dc.title.alternative.pt_BR.fl_str_mv Journal of the Brazilian Chemical Society
title Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants
spellingShingle Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants
Teixeira, Leonardo Sena Gomes
2-(2-Thiazolylazo)
p-Cresol
spectrophotometry
uranium determination
surfactants
title_short Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants
title_full Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants
title_fullStr Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants
title_full_unstemmed Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants
title_sort Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of Surfactants
author Teixeira, Leonardo Sena Gomes
author_facet Teixeira, Leonardo Sena Gomes
Costa, Antonio Celso Spinola
Ferreira, Sergio Luis Costa
Freitas, Maria de Lourdes
Carvalho, Marcelo Souza de
author_role author
author2 Costa, Antonio Celso Spinola
Ferreira, Sergio Luis Costa
Freitas, Maria de Lourdes
Carvalho, Marcelo Souza de
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Teixeira, Leonardo Sena Gomes
Costa, Antonio Celso Spinola
Ferreira, Sergio Luis Costa
Freitas, Maria de Lourdes
Carvalho, Marcelo Souza de
Teixeira, Leonardo Sena Gomes
Costa, Antonio Celso Spinola
Ferreira, Sergio Luis Costa
Freitas, Maria de Lourdes
Carvalho, Marcelo Souza de
dc.subject.por.fl_str_mv 2-(2-Thiazolylazo)
p-Cresol
spectrophotometry
uranium determination
surfactants
topic 2-(2-Thiazolylazo)
p-Cresol
spectrophotometry
uranium determination
surfactants
description p. 519-522
publishDate 1999
dc.date.issued.fl_str_mv 1999
dc.date.accessioned.fl_str_mv 2013-07-31T20:55:53Z
dc.date.available.fl_str_mv 2013-07-31T20:55:53Z
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/12394
dc.identifier.issn.none.fl_str_mv 0103-5053
dc.identifier.number.pt_BR.fl_str_mv v. 10, n. 6
identifier_str_mv 0103-5053
v. 10, n. 6
url http://www.repositorio.ufba.br/ri/handle/ri/12394
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 Journal of the Brazilian Chemical Society
publisher.none.fl_str_mv Journal of the Brazilian Chemical Society
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1590/S0103-50531999000600016
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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reponame_str Repositório Institucional da UFBA
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