Journal of Sol-Gel Science and Technology

, Volume 2, Issue 1–3, pp 595–599 | Cite as

Macroporous thin films for planar chromatography

Code: EP25
  • M. Tsionsky
  • A. Vanger
  • O. Lev


A procedure for the preparation of macroporous silica films suitable for planar chromatography is described. The films are produced by a low pH catalyses of alkyltrialkoxysilanes in oversaturated solution of pore forming organic compounds. A segregated three phase system yields thick films (10–60 µm) that have good adhesion to silica glass supports, uniform, mirror like surface and intercalated micron-dimension pores that permit capillarity driven elution of solvents through the film. A phase diagram demonstrating optimal operating conditions for macroporous and microporous film formation is introduced and analyzed.


pores chromatography macroporous silica films 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Stahl, E., Thin Layer Chromatography 2nd ed., Springer-Verlag, Berlin (1969).Google Scholar
  2. 2.
    Brinker, C.J. and Scherer, G.W., Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing Academic Press, San Diego, 1990.Google Scholar
  3. 3.
    Schmidt, H., Rinn, G., Ness, R., and Sporn, D., in Better Ceramics Through Chemistry III edited by C.J. Brinker, D.E. Clark, and D.R. Ulrich (Mat. Res. Soc. Pittsburgh, Pa., 1988), p. 743.Google Scholar
  4. 4.
    Nakanishi, K. and Soga, N., J. Non-Cryst. Solids, 139, 1 (1992) and references therein.Google Scholar
  5. 5.
    Hench, L.L., in Science of Chemical Processing edited by L.L. Hench and D.R. Ulrich (Wiley, N.Y., 1986), p. 52.Google Scholar
  6. 6.
    Iosefson-Kuyavskaya, B., Gigozin, I., Ottolenghi, M., Avnir, D., and Lev, O., J. Non-Cryst. Solids, 147 & 148, 808 (1992).Google Scholar
  7. 7.
    Lev. O., Analysis, 20, 543 (1992).Google Scholar
  8. 8.
    Yissumm, LTD, USA, Patent application, No. 08/430, 789.Google Scholar

Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • M. Tsionsky
    • 1
  • A. Vanger
    • 1
  • O. Lev
    • 1
  1. 1.Division of Environmental Sciences, Fredy and Nadine Herrmann School of Applied Science and TechnologyThe Hebrew University of JerusalemJerusalem

Personalised recommendations