Determination of metal ions in fuel ethanol after preconcentration on 5-amino-1,3,4-thiadiazole-2-thiol modified silica gel

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dc.contributor.authorGomes, Luis A. de Melo [UNESP]
dc.contributor.authorPadilha, Pedro de Magalhães [UNESP]
dc.contributor.authorMoreira, José Celso [UNESP]
dc.contributor.authorDias Filho, Newton L. [UNESP]
dc.contributor.authorGushikem, Yoshitaka
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-27T11:19:40Z
dc.date.available2014-05-27T11:19:40Z
dc.date.issued1998-12-01
dc.description.abstractThis work describes the synthesis and characterization of 5-amino-1,3,4-thiadiazole-2-thiol modified silica gel (SiATT), and the results of a study of the adsorption and preconcentration (in batch, and in flow using a column technique) of Cd(II), Co(II), Cu(II), Fe(III), Ni(II), Pb(II) and Zn(II) in ethanol medium. The adsorption capacities for each metal ion were (in mmol g -1): Cd(II) = 0.11, Co(II) = 0.10, Cu(II) = 0.20, Fe(III) = 0.20, Ni(II) = 0.16, Pb(II) = 0.08 and Zn(II) = 0.12. The results obtained in the flow experiments, showed a recovery of ca. 100% of the metal ions adsorbed in a column packed with 2 g of SiATT, using 5 mL of 2.0 mol L -1 HCl solution as eluent. The sorption-desorption of the metal ions made possible the development of a preconcentration method and quantification by Flame AAS of metal ions at trace level in fuel ethanol.en
dc.description.affiliationInstituto de Química UNESP, CP 355, 14800-900 Araraquara, SP
dc.description.affiliationInstituto de Biociências Departamento de Química UNESP, CP 510, 18618-000 Botucatu - SP
dc.description.affiliationDepto. de Físico-Quimica UNESP, CP 31, 15385-000 Ilha Solteira - SP
dc.description.affiliationInstituto de Química-Unicamp, CP 6154, 13083-970 Campinas - SP
dc.description.affiliationUnespInstituto de Química UNESP, CP 355, 14800-900 Araraquara, SP
dc.description.affiliationUnespInstituto de Biociências Departamento de Química UNESP, CP 510, 18618-000 Botucatu - SP
dc.description.affiliationUnespDepto. de Físico-Quimica UNESP, CP 31, 15385-000 Ilha Solteira - SP
dc.format.extent494-498
dc.identifierhttp://dx.doi.org/10.1590/S0103-50531998000500015
dc.identifier.citationJournal of the Brazilian Chemical Society, v. 9, n. 5, p. 494-498, 1998.
dc.identifier.doi10.1590/S0103-50531998000500015
dc.identifier.file2-s2.0-3042898374.pdf
dc.identifier.issn0103-5053
dc.identifier.lattes6981448637456391
dc.identifier.orcid0000-0003-4179-0574
dc.identifier.scieloS0103-50531998000500015
dc.identifier.scopus2-s2.0-3042898374
dc.identifier.urihttp://hdl.handle.net/11449/65629
dc.identifier.wosWOS:000077494800014
dc.language.isoeng
dc.relation.ispartofJournal of the Brazilian Chemical Society
dc.relation.ispartofjcr1.444
dc.relation.ispartofsjr0,357
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subject5-amino-1,3,4-thiadiazole-2-thiol modified silica gel
dc.subjectFuel ethanol
dc.subjectPreconcentration
dc.titleDetermination of metal ions in fuel ethanol after preconcentration on 5-amino-1,3,4-thiadiazole-2-thiol modified silica gelen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/jbchs/iaboutj.htm
unesp.author.lattes6981448637456391[2]
unesp.author.orcid0000-0003-4179-0574[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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