dc.creatorFaria, AM
dc.creatorTonhi, E
dc.creatorCollins, KE
dc.creatorCollins, CH
dc.date2007
dc.dateAUG
dc.date2014-11-14T05:52:26Z
dc.date2015-11-26T17:13:34Z
dc.date2014-11-14T05:52:26Z
dc.date2015-11-26T17:13:34Z
dc.date.accessioned2018-03-29T00:01:55Z
dc.date.available2018-03-29T00:01:55Z
dc.identifierJournal Of Separation Science. Wiley-v C H Verlag Gmbh, v. 30, n. 12, n. 1844, n. 1851, 2007.
dc.identifier1615-9306
dc.identifierWOS:000248641700006
dc.identifier10.1002/hssc.200700027
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/74502
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/74502
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/74502
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1281601
dc.descriptionStationary phases for RP-HPLC were prepared from metalized (titanized and zirconized) and unmodified silica particles using sorbed and immobilized poly(methyltetradecylsiloxane) (PMTDS). Different immobilization procedures, such as gamma irradiation and thermal treatments, were used for the preparation of the immobilized PMTDS phases. The stabilities of these stationary phases were evaluated by passing alkaline (pH 10) mobile phase through 60 mm x 3.9 mm columns of the different phases, with periodic tests to evaluate chromatographic performance. The results show that higher stabilities were obtained with stationary phases based on PMTDS immobilized on zirconized silica, these phases being 50% more stable than their titanized silica counterparts and 400% more stable than those based on unmodified silica. These supports provide higher chemical stability to the laboratory-made stationary phases, when compared with chemically bonded silica-based phases.
dc.description30
dc.description12
dc.description1844
dc.description1851
dc.languageen
dc.publisherWiley-v C H Verlag Gmbh
dc.publisherWeinheim
dc.publisherAlemanha
dc.relationJournal Of Separation Science
dc.relationJ. Sep. Sci.
dc.rightsfechado
dc.rightshttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dc.sourceWeb of Science
dc.subjectalkaline conditions
dc.subjectimmobilized stationary phases
dc.subjectmetalized silicas
dc.subjectPMTDS
dc.subjectstability testing
dc.subjectPerformance Liquid-chromatography
dc.subjectZirconized Silica
dc.subjectCoated Zirconia
dc.subjectBonded Phases
dc.subjectColumn
dc.subjectHplc
dc.subjectPackings
dc.subjectSupports
dc.titleStability studies of stationary phases from ploy(methyltetradecylsiloxane) sorbed and immobilized onto metalized and unmodified silicas
dc.typeArtículos de revistas


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