Characterization of zirconized silica supports for HPLC

dc.creatorFaria, AM
dc.creatorMagalhaes, DR
dc.creatorCollins, KE
dc.creatorCollins, CH
dc.date2005
dc.dateSEP 26
dc.date2014-11-18T12:33:08Z
dc.date2015-11-26T17:50:18Z
dc.date2014-11-18T12:33:08Z
dc.date2015-11-26T17:50:18Z
dc.date.accessioned2018-03-29T00:33:30Z
dc.date.available2018-03-29T00:33:30Z
dc.identifierAnalytica Chimica Acta. Elsevier Science Bv, v. 550, n. 41671, n. 137, n. 143, 2005.
dc.identifier0003-2670
dc.identifierWOS:000232356200018
dc.identifier10.1016/j.aca.2005.06.066
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/62923
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/62923
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/62923
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1289641
dc.descriptionThe preparation and characterization of zirconized silica has been investigated. The material was prepared via the reaction of silica with zirconium tetrabutoxide, optimized by a central composite design and response surface methodology. The new material was characterized by nitrogen adsorption-desorption investigations (BET/BJH) showing specific surface areas adequate for use as a chromatographic support. DRUVS, FTIR, XPS, XAS, XRF and SEM methods also were used to characterize the new material. It was shown that silica networks were not significantly modified with the introduction of zirconium. Surface analyses show that there is appreciable element enrichment at the surface, while significant changes in binding energies of Zr 3d, Si 2p, and O 1s have been detected. The above observations indicate that Si-O-Zr bonds were formed, with zirconium grafted onto the silica surface, yielding a support suitable for HPLC. (c) 2005 Elsevier B.V. All rights reserved.
dc.description550
dc.description41671
dc.description137
dc.description143
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationAnalytica Chimica Acta
dc.relationAnal. Chim. Acta
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectchromatographic support
dc.subjectzirconized silica
dc.subjectXAS
dc.subjectXPS
dc.subjectPerformance Liquid-chromatography
dc.subjectTitanium-grafted Silica
dc.subjectStationary Phases
dc.subjectImmobilized Poly(methyloctylsiloxane)
dc.subjectGamma-radiation
dc.subjectBonded-phases
dc.subjectMobile Phases
dc.subjectHigh Ph
dc.subjectGel
dc.subjectSeparation
dc.titleCharacterization of zirconized silica supports for HPLC
dc.typeArtículos de revistas


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