Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid

Detalhes bibliográficos
Autor(a) principal: Ferreira, Sergio Luis Costa
Data de Publicação: 1996
Outros Autores: Araújo, Neyla Margarida Lopo de, Matos, Renato C., Torres, André Luís Carvalho, 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/8455
Resumo: Texto completo: acesso restrito. p.95-99
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spelling Ferreira, Sergio Luis CostaAraújo, Neyla Margarida Lopo deMatos, Renato C.Torres, André Luís CarvalhoCosta, Antonio Celso SpinolaFerreira, Sergio Luis CostaAraújo, Neyla Margarida Lopo deMatos, Renato C.Torres, André Luís CarvalhoCosta, Antonio Celso Spinola2013-02-15T17:38:59Z19960026-3672http://www.repositorio.ufba.br/ri/handle/ri/8455v. 122, n. 1-2Texto completo: acesso restrito. p.95-99A fast Spectrophotometric method has been developed for titanium determination in geological matrices, based on the mixture of the sample solution with an exact volume of a single chromogenic solution containing acetate buffer, ascorbic acid and 3,4-dihydroxybenzoic acid DHB, which forms with titanium(IV) ions a yellow complex with absorption maximum at 380 nm. The following parameters were studied: complex stability, pH effect, amount of DHB, amount of acetate buffer, obedience to Beer's law, amount of ascorbic acid and iron masking. The results demonstrated that titanium can be determined in the pH range 4.0–5.0, with a molar absorptivity of 1.43 × 104 1·mol−1 cm−1 and a limit of detection of 2.3 ng/ml. The methodology that allows analysis of 30 samples per hour. Common anions and cations do not interfere, even when present in large amounts. Iron(III) interference can be easily eliminated by reduction to iron(II) using ascorbic acid. Analytical characteristics of the proposed procedure, such as calibration sensitivity, analytical sensitivity, limit of detection and coefficient of variation, were determined. The procedure was applied for titanium determination in various standard geological matrices, with results of satisfactory accuracy and precision (RSD<1%).Submitted by Suelen Reis (suelen_suzane@hotmail.com) on 2013-02-15T17:38:59Z No. of bitstreams: 1 Ferreira.pdf: 272465 bytes, checksum: 5b1478614fc37134c6a41fa742390756 (MD5)Made available in DSpace on 2013-02-15T17:38:59Z (GMT). No. of bitstreams: 1 Ferreira.pdf: 272465 bytes, checksum: 5b1478614fc37134c6a41fa742390756 (MD5) Previous issue date: 1996http://dx.doi.org/10.1007/BF01252410reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAtitanium determination3,4-dihydroxybenzoic acidspectrophotometrygeological matricesFast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acidMicrochimica Actainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINALFerreira.pdfFerreira.pdfapplication/pdf272465https://repositorio.ufba.br/bitstream/ri/8455/1/Ferreira.pdf5b1478614fc37134c6a41fa742390756MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/8455/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTFerreira.pdf.txtFerreira.pdf.txtExtracted texttext/plain10806https://repositorio.ufba.br/bitstream/ri/8455/3/Ferreira.pdf.txta30ec7e75aae8aae7100782cacb8af3bMD53ri/84552022-08-08 13:17:58.85oai: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 Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid
dc.title.alternative.pt_BR.fl_str_mv Microchimica Acta
title Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid
spellingShingle Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid
Ferreira, Sergio Luis Costa
titanium determination
3,4-dihydroxybenzoic acid
spectrophotometry
geological matrices
title_short Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid
title_full Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid
title_fullStr Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid
title_full_unstemmed Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid
title_sort Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid
author Ferreira, Sergio Luis Costa
author_facet Ferreira, Sergio Luis Costa
Araújo, Neyla Margarida Lopo de
Matos, Renato C.
Torres, André Luís Carvalho
Costa, Antonio Celso Spinola
author_role author
author2 Araújo, Neyla Margarida Lopo de
Matos, Renato C.
Torres, André Luís Carvalho
Costa, Antonio Celso Spinola
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ferreira, Sergio Luis Costa
Araújo, Neyla Margarida Lopo de
Matos, Renato C.
Torres, André Luís Carvalho
Costa, Antonio Celso Spinola
Ferreira, Sergio Luis Costa
Araújo, Neyla Margarida Lopo de
Matos, Renato C.
Torres, André Luís Carvalho
Costa, Antonio Celso Spinola
dc.subject.por.fl_str_mv titanium determination
3,4-dihydroxybenzoic acid
spectrophotometry
geological matrices
topic titanium determination
3,4-dihydroxybenzoic acid
spectrophotometry
geological matrices
description Texto completo: acesso restrito. p.95-99
publishDate 1996
dc.date.issued.fl_str_mv 1996
dc.date.accessioned.fl_str_mv 2013-02-15T17:38:59Z
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/8455
dc.identifier.issn.none.fl_str_mv 0026-3672
dc.identifier.number.pt_BR.fl_str_mv v. 122, n. 1-2
identifier_str_mv 0026-3672
v. 122, n. 1-2
url http://www.repositorio.ufba.br/ri/handle/ri/8455
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/BF01252410
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
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