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pubmed-article:10575967rdf:typepubmed:Citationlld:pubmed
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pubmed-article:10575967pubmed:issue22lld:pubmed
pubmed-article:10575967pubmed:dateCreated1999-12-9lld:pubmed
pubmed-article:10575967pubmed:abstractTextWe synthesized a novel aromatic polymer-coated zirconia-based RPLC stationary phase by chemical adsorption of a copolymer of chloromethylstyrene and diethoxymethylvinylsilane onto zirconia (CMS/VMS-ZrO2). Characterization of the pore structure of the support by nitrogen porosimetry and inverse size-exclusion chromatography indicates that CMS/VMS-ZrO2 maintains the well-defined pore structure of the base material. Flow studies show that CMS/VMS-ZrO2 has good mass transfer characteristics. The reversed-phase retention characteristics of the new support are comparable to those of conventional silica-bonded phases. We have also evaluated the mechanical, thermal, and pH stability of CMS/VMS-ZrO2. The results show that CMS/VMS-ZrO2 is stable over a very wide range of pH (pH = 1-13) and at temperatures as high as 160 degrees C. Chromatographic separations of some low molecular weight aromatic analytes on CMS/VMS-ZrO2 and octadecyl-bonded silica phases indicate that there are some subtle but significant differences in the chromatographic selectivity of these two types of phases.lld:pubmed
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pubmed-article:10575967pubmed:statusMEDLINElld:pubmed
pubmed-article:10575967pubmed:monthNovlld:pubmed
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pubmed-article:10575967pubmed:authorpubmed-author:CarrP WPWlld:pubmed
pubmed-article:10575967pubmed:authorpubmed-author:ZhaoJJlld:pubmed
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pubmed-article:10575967pubmed:day15lld:pubmed
pubmed-article:10575967pubmed:volume71lld:pubmed
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pubmed-article:10575967pubmed:pagination5217-24lld:pubmed
pubmed-article:10575967pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:10575967pubmed:year1999lld:pubmed
pubmed-article:10575967pubmed:articleTitleSynthesis and evaluation of an aromatic polymer-coated zirconia for reversed-phase liquid chromatography.lld:pubmed
pubmed-article:10575967pubmed:affiliationDepartment of Chemistry, University of Minnesota, Minneapolis 55455, USA.lld:pubmed
pubmed-article:10575967pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:10575967pubmed:publicationTypeResearch Support, U.S. Gov't, P.H.S.lld:pubmed