Sorption and preconcentration of metal ions on silica gel modified with 2,5-dimercapto-1,3,4-thiadiazole

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dc.contributor.authorLessi, P.
dc.contributor.authorDias, N. L.
dc.contributor.authorMoreira, J. C.
dc.contributor.authorCampos, JTS
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:27:51Z
dc.date.available2014-05-20T15:27:51Z
dc.date.issued1996-06-28
dc.description.abstractSilica gel, chemically modified with 2,5-dimercapto-1,3,4-thiadiazole [=Si(CH2)(3)-NC2HNS3], abbreviated as SiB, was used to adsorb metal ions from ethanol by both batch and column techniques. Elution of Cu(II) was done with a solvent mixture of acetone and hydrochloric acid (9:1 v/v). Zn(II), Cd(II), Ni(II), Pb(II), Co(II) and Fe(III) were eluted with 0.5 mol l(-1) HC1 in ethanol solution. The modified silica was applied in the preconcentration of metal ions from commercial ethanol, normally used as engine fuel. The method is suitable for quantifying these metals at low mu g l(-1) levels.en
dc.description.affiliationUNESP,DEPT QUIM FIS,BR-15385000 ILHA SOLTEIRA,SP,BRAZIL
dc.description.affiliationUNESP,INST QUIM,BR-14800900 ARARAQUARA,SP,BRAZIL
dc.description.affiliationUnespUNESP,DEPT QUIM FIS,BR-15385000 ILHA SOLTEIRA,SP,BRAZIL
dc.description.affiliationUnespUNESP,INST QUIM,BR-14800900 ARARAQUARA,SP,BRAZIL
dc.format.extent183-190
dc.identifierhttp://dx.doi.org/10.1016/0003-2670(96)00074-8
dc.identifier.citationAnalytica Chimica Acta. Amsterdam: Elsevier B.V., v. 327, n. 2, p. 183-190, 1996.
dc.identifier.doi10.1016/0003-2670(96)00074-8
dc.identifier.issn0003-2670
dc.identifier.urihttp://hdl.handle.net/11449/37767
dc.identifier.wosWOS:A1996UY09200014
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAnalytica Chimica Acta
dc.relation.ispartofjcr5.123
dc.relation.ispartofsjr1,512
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectpreconcentrationpt
dc.subjectsilica gel functionalizedpt
dc.subject2,5-dimercapto-1,3,4-thiadiazolept
dc.subjectbismuthol Ipt
dc.titleSorption and preconcentration of metal ions on silica gel modified with 2,5-dimercapto-1,3,4-thiadiazoleen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Física e Química - FEIS