Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations

Detalhes bibliográficos
Autor(a) principal: Teixeira, Leonardo Sena Gomes
Data de Publicação: 1999
Outros Autores: Rocha, Fábio Rodrigo Piovezani, Korn, Mauro, Reis, Boaventura F., Ferreira, Sergio Luis Costa, Costa, Antonio Celso Spinola
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7605
Resumo: Texto completo: acesso restrito, p.309-315
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spelling Teixeira, Leonardo Sena GomesRocha, Fábio Rodrigo PiovezaniKorn, MauroReis, Boaventura F.Ferreira, Sergio Luis CostaCosta, Antonio Celso SpinolaTeixeira, Leonardo Sena GomesRocha, Fábio Rodrigo PiovezaniKorn, MauroReis, Boaventura F.Ferreira, Sergio Luis CostaCosta, Antonio Celso Spinola2012-12-17T16:38:06Z19990003-2670http://www.repositorio.ufba.br/ri/handle/ri/7605v. 383, n. 3Texto completo: acesso restrito, p.309-315A flow system exploiting solid-phase spectrophotometry is proposed for the determination of zinc in pharmaceutical preparations. The chromogenic reagent 1-(2-tiazolylazo)-2-naphthol (TAN) was immobilized on C18 bonded silica loaded into a homemade flow cell with 1 mm optical path and 78 mm2 cross section. The flow cell was designed in such a way that the sensitivity is enhanced and the attenuation of the radiation beam due to scattering and absorption by the solid material is minimized. The flow cell was placed in the spectrophotometer so that the radiation beam was focused on the overall surface containing the adsorbing material. Reagent immobilization was performed on-line and allowed to work for at least one month. Analyte reaction, retention and detection were performed simultaneously, followed by elution with hydrochloric acid. The apparent molar absorptivity was estimated as 2.02×105 l mol−1 cm−1 and the procedure allowed the determination of zinc in the 0.04–4.0 mg l−1 range with a coefficient of variation of 3.3% (n=10). A sample throughput of 45 determinations per hour and a detection limit of 10 μg l−1 (99.7% confidence level) were achieved. The results agreed at a 95% confidence level with those found by inductively coupled plasma atomic emission spectrometry.Submitted by Texeira Ana (atanateixeira@gmail.com) on 2012-12-17T16:38:06Z No. of bitstreams: 1 Teixeira.pdf: 167194 bytes, checksum: 1e67aff0c9af02d06610c5c6392c3336 (MD5)Made available in DSpace on 2012-12-17T16:38:06Z (GMT). No. of bitstreams: 1 Teixeira.pdf: 167194 bytes, checksum: 1e67aff0c9af02d06610c5c6392c3336 (MD5) Previous issue date: 1999-03Elservierhttp://dx.doi.org/10.1016/S0003-2670(98)00792-2reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBASolid-phase spectrophotometryFlow-injection analysisZinc determinationPharmaceutical preparationsFlow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparationsAnalytica Chimica Actainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINALTeixeira.pdfTeixeira.pdfapplication/pdf167194https://repositorio.ufba.br/bitstream/ri/7605/1/Teixeira.pdf1e67aff0c9af02d06610c5c6392c3336MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/7605/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTTeixeira.pdf.txtTeixeira.pdf.txtExtracted texttext/plain25181https://repositorio.ufba.br/bitstream/ri/7605/3/Teixeira.pdf.txt13c26aed96f00bdb9ffc040d923a230eMD53ri/76052022-11-03 09:45:58.85oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-11-03T12:45:58Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations
dc.title.alternative.pt_BR.fl_str_mv Analytica Chimica Acta
title Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations
spellingShingle Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations
Teixeira, Leonardo Sena Gomes
Solid-phase spectrophotometry
Flow-injection analysis
Zinc determination
Pharmaceutical preparations
title_short Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations
title_full Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations
title_fullStr Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations
title_full_unstemmed Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations
title_sort Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations
author Teixeira, Leonardo Sena Gomes
author_facet Teixeira, Leonardo Sena Gomes
Rocha, Fábio Rodrigo Piovezani
Korn, Mauro
Reis, Boaventura F.
Ferreira, Sergio Luis Costa
Costa, Antonio Celso Spinola
author_role author
author2 Rocha, Fábio Rodrigo Piovezani
Korn, Mauro
Reis, Boaventura F.
Ferreira, Sergio Luis Costa
Costa, Antonio Celso Spinola
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Teixeira, Leonardo Sena Gomes
Rocha, Fábio Rodrigo Piovezani
Korn, Mauro
Reis, Boaventura F.
Ferreira, Sergio Luis Costa
Costa, Antonio Celso Spinola
Teixeira, Leonardo Sena Gomes
Rocha, Fábio Rodrigo Piovezani
Korn, Mauro
Reis, Boaventura F.
Ferreira, Sergio Luis Costa
Costa, Antonio Celso Spinola
dc.subject.por.fl_str_mv Solid-phase spectrophotometry
Flow-injection analysis
Zinc determination
Pharmaceutical preparations
topic Solid-phase spectrophotometry
Flow-injection analysis
Zinc determination
Pharmaceutical preparations
description Texto completo: acesso restrito, p.309-315
publishDate 1999
dc.date.issued.fl_str_mv 1999
dc.date.accessioned.fl_str_mv 2012-12-17T16:38:06Z
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/7605
dc.identifier.issn.none.fl_str_mv 0003-2670
dc.identifier.number.pt_BR.fl_str_mv v. 383, n. 3
identifier_str_mv 0003-2670
v. 383, n. 3
url http://www.repositorio.ufba.br/ri/handle/ri/7605
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 Elservier
publisher.none.fl_str_mv Elservier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/S0003-2670(98)00792-2
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)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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