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  • Influence of temperature, concentration and reaction  (1)
  • Polycyclic aromatic hydrocarbons  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Reversed phase C18 packings for the separation of polycyclic aromatic hydrocarbons by high performance liquid chromatography (1994)
    Springer
    Chromatographia 39 (1994), S. 668-672 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Monomeric and oligomeric RP packings ; Preparation of RP stationary phases ; Polycyclic aromatic hydrocarbons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The preparation of C18 stationary phases for the separation of polycyclic aromatic hydrocarbons has been investigated. The effect of the pore size of the silica, the endcapping procedure, the amount of reagent and the amount of water in the preparation was also examined. A good correlation between surface coverage and capacity factor was found. The maximum surface coverage available with our preparation method lies between 3–3.5 μmol m−2, slightly depending on the pore size of the silica. Oligomeric not endcapped C18 packing materials are optimal for the separation of polycyclic aromatic hydrocarbons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02274581
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Chromatographic packings made by solide phase synthesis (1987)
    Springer
    Chromatographia 23 (1987), S. 254-256 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Synthesis of stationary phases ; Influence of surface pH ; Influence of temperature, concentration and reaction ; time
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A new way to produce liquid chromatographic stationary phases is suggested. The method is based upon a solide-phase reaction between the silica surface and the adsorbed silane molecules. The role of surface pH is demonstrated. The influence of other reaction conditions (concentration of the silane solution, effect of temperature and reaction time) is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02311774
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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