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  • 1
    Electronic Resource
    Electronic Resource
    Comparison of surface states of chemically modified silicas in aqueous acetonitrile and methanol (1991)
    Springer
    Chromatographia 31 (1991), S. 347-350 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Chemically modified silicas ; Surface states ; n-alkylbenzenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The thermodynamic behaviour of n-alkylbenzenes on chemically modified silicas in reversed-phase liquid chromatography has been examined in acetonitrile-water and methanol-water systems. Plots of the thermodynamic parameters obtained against the organic solvent compositions indicate an interesting trend which implies that the surface states of the chemically modified silicas under the two eluent systems are different.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02262190
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Syntheses of spherical silica and titania from alkoxides on a laboratory scale (1994)
    Springer
    Chromatographia 38 (1994), S. 291-294 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Column packings ; Silica and titania ; Sol-gel method
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A process to synthesize silica and titania as spherical packing materials has been investigated on the laboratory scale by the sol-gel method. The silica and titania obtained were tested under normal-phase separation conditions for comparison of their retention characteristics silica witha a commercial. The silica was found to be similar in its retention behaviour to the commercial silica. The titania showed basic properties and strongly retained acidic compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02269770
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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