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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleEnhanced Selectivity and Sensitivity for Flow Injection Spectrophotometric Determination of Cobalt Using Solid Phase Extraction with a 2D Ion-Imprinted Adsorbentpt_BR
dc.contributor.authorTarley, CRTpt_BR
dc.contributor.authorFernandes, FFpt_BR
dc.contributor.authorLuccas, POpt_BR
dc.contributor.authorSegatelli, MGpt_BR
unicamp.author.emailctarleyquim@yahoo.com.brpt_BR
unicamp.authorTeixeira Tarley, Cesar Ricardo Fernandes, Fernanda Fantin Luccas, Pedro Orival Univ Fed Alfenas Unifal MG, Programa Posgrad Ciencias Farmaceut, BR-37130000 Alfenas, MG, Brazilpt_BR
unicamp.authorTeixeira Tarley, Cesar Ricardo Univ Estadual Campinas Unicamp, Inst Quim, Dept Quim Analit, INCT Bioanalit, Campinas, SP, Brazilpt_BR
unicamp.authorTeixeira Tarley, Cesar Ricardo Luccas, Pedro Orival Segatelli, Mariana Gava Univ Fed Alfenas Unifal MG, Dept Ciencias Exatas, BR-37130000 Alfenas, MG, Brazilpt_BR
dc.subject2D imprinting methodpt_BR
dc.subjectCobaltpt_BR
dc.subjectSolid phase extractionpt_BR
dc.subjectSpectrophotometrypt_BR
dc.subjectSurface imprinting techniquept_BR
dc.subject.wosSilica-gelpt_BR
dc.subject.wosTrace Cobaltpt_BR
dc.subject.wosPreconcentrationpt_BR
dc.subject.wosSeparationpt_BR
dc.subject.wosPolymerspt_BR
dc.subject.wosSorbentpt_BR
dc.subject.wosCopperpt_BR
dc.subject.wosPairpt_BR
dc.description.abstractThe present work reports the effectiveness of a 2D imprinting method based on a surface imprinting technique for the development of a selective and sensitive flow sorbent preconcentration system for Co2+ ion determination. Cobalt ions were determined by UV-vis spectrophotometry exploiting the complexation with 1-(2-piridylazo)-2-naphtol (PAN). Based on a coefficient of relative selectivity (k'), the ion-imprinted amino-functionalized silica gel sorbent (ISG), compared with modified but non-imprinted sorbent (MSG) and silica gel (SG), showed a very high selectivity. A limit of detection of 0.51 mu g L-1 and precision (n=10) as a relative standard deviation of 2.63 and 1.50% for Co2+ concentration of 10.0 and 90.0 mu g L-1, respectively, were achieved. A comparison of the proposed method with other previously published methods shows advantages in terms of sample consumption, sample throughput, and limit of detection. The application of the present method was successfully performed for the direct determination of Co2+ content in urine and environmental water samples without any interference and without sample preparation, with satisfactory results.pt
dc.relation.ispartofAnalytical Letterspt_BR
dc.relation.ispartofabbreviationAnal. Lett.pt_BR
dc.publisher.cityPhiladelphiapt_BR
dc.publisher.countryEUApt_BR
dc.publisherTaylor & Francis Incpt_BR
dc.date.issued2011pt_BR
dc.identifier.citationAnalytical Letters. Taylor & Francis Inc, v. 44, n. 41699, n. 216, n. 231, 2011.pt_BR
dc.language.isoenpt_BR
dc.description.volume44pt_BR
dc.description.issuenumber41699pt_BR
dc.description.firstpage216pt_BR
dc.description.lastpage231pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asppt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0003-2719pt_BR
dc.identifier.wosidWOS:000287494700017pt_BR
dc.identifier.doi10.1080/00032719.2010.500756pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorship1Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.date.available2014-07-30T17:19:42Z
dc.date.available2015-11-26T17:47:40Z-
dc.date.accessioned2014-07-30T17:19:42Z
dc.date.accessioned2015-11-26T17:47:40Z-
dc.description.provenanceMade available in DSpace on 2014-07-30T17:19:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2011en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:47:40Z (GMT). No. of bitstreams: 2 WOS000287494700017.pdf: 716076 bytes, checksum: b78482be17d2113c8669f6964726088b (MD5) WOS000287494700017.pdf.txt: 40502 bytes, checksum: 845ecc12e9efb7973e3097384a66cdf3 (MD5) Previous issue date: 2011en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/64844
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/64844-
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