Summary
Adsorption properties of alkaline earth-metal modified silica beads were investigated by the gas-solid chromatography (GSC) method. Silica beads, obtained from colloidal material, were characterized by their surface areas, crystallinity and amount of sorbed alkaline earth cations. Retentions of several aliphatic, alicyclic, chlorinated, and aromatic compounds were measured in the temperature range from 373 to 453 K.
The gas/solid partition coefficients, K5, and the related thermodynamic functions at zero surface coverage were determined. The results show that the specific surface areas of modified silica samples remain practically constant, whereas the modification leads to a decrease of silica surface heterogeneity.
Similar content being viewed by others
References
C. S. G. Phillips, C. E. Scott, inJ. H. Purnell (Editor), “Progress in Gas Chromatography”, pp. 121–152, Wiley-Interscience, New York, 1968.
A. V. Kiselev, Ya. I. Yashin, “Gazo-Adsorbtsionnaya Kromatografiya”, (Gas-Adsorption Chromatography), Nauka, Moscow, 1967.
A. V. Kiselev, D. P. Poshkus, Ya. I. Yashin, “Molekulyarnye Osnovy Adsorbtsionnoi Khromatografii”, Khimiya, Moscow, 1986.
A. V. Kiselev, “Mezhmolekulyarnye Vzaimodeistviya v Adsorbtsii i Khromatografii”, Vysshaya shkola, Moscow, 1986.
M. M. Kopečni, R. J. Laub, S. K. Milonjić, Anal. Chem.,52, 1032 (1980).
S. K. Milonjić, M. M. Kopečni, Chromatographia,19, 342 (1984).
M. M. Kopečni, S. K. Milonjić, W. Rudzinski, J. Jagiello, Collection Czechoslovak Chem. Commun.,52, 572 (1987).
M. M. Marković, M. M. Kopečni, S. K. Milonjić, T. S. Ćeranić, accepted for publication in J. Chromatogr. (1989).
S. K. Milonjić, M. M. Kopečni, Z. E. Ilić, Bull. Soc. Chim. Beograd,48, 351 (1983).
Yu. S. Nikolaev, V. N. Pak, G. K. Ragulin, Kolloidn. Zh.,49, 589 (1987).
M. M. Marković, M. M. Kopečni, S. K. Milonjić, T. S. Ćeranić, Chromatographia26, 387 (1988).
S. Katz, D. G. Gray, J. Colloid Interface Sci.,82, 318 (1981).
J. H. de Boer, “The Dynamical Character of Adsorption”, p. 49, Clarendon, Oxford, 1953.
J. H. de Boer, “The Dynamical Character of Adsorption”, pp. 112–115, Clarendon, Oxford, 1953.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Milonjić, S.K., Zhigunova, L.K. & Pavasović, V.L. Adsorption of organic liquids on alkaline earth-metal modified silica. Chromatographia 26, 324–328 (1988). https://doi.org/10.1007/BF02268175
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02268175