, Volume 29, Issue 7–8, pp 366–374 | Cite as

Separation of alkylnaphthalenes by preparative liquid chromatography using column switching systems

  • J. Kříž
  • E. Adamcová
  • L. Vodička


The paper describes the separation of the mixture of alkynaphthalenes from distillation cuts of a pyrolysis oil, by preparative liquid chromatography on silica. The design of the system permits the connection of the columns to form multicolumn systems.

The samples were first separated on a single column. The mixtures were further separated using two-column chromatography systems.

The obtained fractions were analyzed by capillary gas chromatography. In most cases a substantial increase in the concentrations of the individual components was achieved. In several cases, pure compounds have been obtained. Separation efficiency increases in the following order: single column, two directly coupled collumns, two-step switching chromatography, heartcutting.

Key Words

Column liquid chromatography Preparative scale separation Column coupling and column switching GC analysis of fractions Diaromatic hydrocarbons 


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  1. [1]
    J. Punčochářová, J. Kříž, L. Vodička, D. Pr⫲šová, J. Chromatogr.191, 81, (1980)CrossRefGoogle Scholar
  2. [2]
    A.W.J. De Jong, H. Poppe, J.C. Kraak, J. Chromatogr.209, 432, (1981)CrossRefGoogle Scholar
  3. [3]
    H. Poppe, J.C. Kraak, J. Chromatogr.255, 395, (1983)CrossRefGoogle Scholar
  4. [4]
    G. Cretier, J.L. Rocca, Chromatographia16, 32, (1982)CrossRefGoogle Scholar
  5. [5]
    J.H. Knox, H.M. Pyper, J. Chromatogr.363, 1, (1986)CrossRefGoogle Scholar
  6. [6]
    K. Gazda, J.S. Kowalczyk, J. High Resolut. Chromatogr./Chromatogr. Commun.6, 264 (1983)CrossRefGoogle Scholar
  7. [7]
    R.E. Majors, J. Chromatogr. Sci.18, 5, (1980)Google Scholar
  8. [8]
    C.J. Little, O. Stahel, W. Lindner, R.W. Frei, Internat. Lab.14, 26, ((March) 1984)Google Scholar
  9. [9]
    M.C. Harvey, S.D. Stearns, Internat. Lab.12, 112, ((June) 1982)Google Scholar
  10. [10]
    T.J.N. Webber, E.H. McKerrel, J. Chromatogr.122, 243, (1976)CrossRefGoogle Scholar
  11. [11]
    A.W.J. De Jong, H. Poppe, J.C. Kraak, J. Chromatogr.148, 127, (1978)CrossRefGoogle Scholar
  12. [12]
    J. Kříž, M. Březina, L. Vodička, V. Moravec, E. Adamcová, Czech. Pat.231, 895 (1984)Google Scholar
  13. [13]
    M. Březina, J. Kříž, V. Moravec, L. Vodička, Czech. Pat.265, 142 (1989)Google Scholar
  14. [14]
    J. Kříž, L. Kubelka, M. Popl, J. Mostecky, Sb. technol., Praha D47, 247, (1983)Google Scholar
  15. [15]
    E. Adamcová, Ph.D. Thesis, Inst. Chem. Technol, Prague, 1984Google Scholar
  16. [16]
    J. Kříž, E. Adamcová, M. Břzina, L. Vodička, Sb. Vys. sk.chem.technol., Praha D55, 35, (1986)Google Scholar
  17. [17]
    M. Kuraš, J. Kříž, L. Vodička, M. Březina, Fresenius Z.Anal. Chem.299, 375, (1979)CrossRefGoogle Scholar
  18. [18]
    J. Punčochářová, L. Vodička, J. Kříž, J. Chromatogr.267, 222, (1983)CrossRefGoogle Scholar

Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1990

Authors and Affiliations

  • J. Kříž
    • 1
  • E. Adamcová
    • 1
  • L. Vodička
    • 1
  1. 1.Laboratory of Synthetic FuelsInstitute of Chemical TechnologyPrague 6Czechoslovakia

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