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  • 1
    Electronic Resource
    Electronic Resource
    Gas chromatographic behaviour of monosubstituted benzenes, benzaldehydes and acetophenones on OV polymethylphenylsilicone stationary phases (1992)
    Springer
    Chromatographia 33 (1992), S. 267-271 
    Details
    ISSN: 1612-1112
    Keywords: Gas chromatography ; Methylphenylsiloxane stationary phases ; Kovats retention indices ; Monosubstituted benzenes, benzaldehydes and acetophenones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The retention indices of some monosubstituted benzenes, benzaldeyhdes and acetophenones have been determined on seven OV polymethylphenylsiloxane liquid phases. The interactions and forces that affect the separation of the isomers and their elution sequences are discussed, taking into account mesomeric and inductive effects of the substituents in the benzene ring and the dipole moments of these solutes. These phases are not very selective for the separation or the accurate assessment of the effect of substituent over the benzene nucleus. This may be explained by the presence of the considerable number of benzene nuclei integral to the structure of these phases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02276193
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  • 2
    Electronic Resource
    Electronic Resource
    Mathematical dead time determination and calculation of the constants of the n-alkane retention time curve on OV polymethyl phenylsilicone stationary phases in gas chromatography (1986)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 9 (1986), S. 456-460 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Theory ; Mathematical dead time ; Methylphenylsiloxane stationary phases ; Constants of the n-alkane retention time curve ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The column dead time and the constants of the n-alkane retention time curve in gas-liquid chromatography are calculated by the Wentworth iterative method on series of OV polymethylphenylsilicones with an increasing percentage of phenyl substituent. The values obtained are in good agreement with those calculated by the methods of Gröbler and Kaiser and with the experimental ones reported in the literature for stationary phases studied at 120°C and 150°C. The scatter of experimental retention times of n-alkanes and tM and b and c and Kováts retention indices are calculated.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240090808
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    Paper (German National Licenses)
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