Summary
The chromatographic technique of frontal analysis is applied to measuring adsorption from binary liquid mixtures by silica gel. The complete adsorption isotherm of a solvent mixture is obtained by measuring the break-through curves for a series of small concentration steps of the mobile phase. This method offers a direct way to determine the composition of the stationary phase in liquid-solid chromatography with mixed mobile phases. The surface excess isotherms of all binary systems formed by benzene, cyclohexane, and 1,2-dichloroethane, at the solution-silica gel interface at 25 °C are presented. The data of the three systems are shown to be thermodynamically mutually consistent.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
L. R. Snyder, in “High Performance Liquid Chromatography Advances and Perspectives”,C. Horváth (ed.), Vol. 1, Academic Press New York, 1980.
G. Guiochon, in “High Performance Liquid Chromatography. Advances and Perspectives”,C. Horváth (ed.), Vol 2, Academic Press, New York, 1980.
M. Jaroniec, A. Patrykiejew, J. Chem. Soc. Faraday Trans. 176, 2486 (1980).
D. H. Everett, Trans. Faraday Soc.60, 1803 (1964);61, 2478 (1965).
M. Jaroniec, B. Oscik-Mendyk, J. Chem. Soc. Faraday Trans. 177, 1277 (1981).
H. L. Wang, J. L. Duda, C. J. Radke, J. Colloid Interface Sci.66, 153 (1978).
“Definitions, Terminology and Symbols in Colloid and Surface Chemistry”, Pure Appl. Chem.31, 579 (1972).
I. Halász, in “Modern Practice of Liquid Chromatography”,J. J. Kirkland (ed.), J. Wiley, New York, 1971, p. 328.
E. Wilhelm, J.-P. E. Grolier, M. H. Karbalai Ghassemi, Monatsh. Chem.109, 369 (1978).
D. H. Everett, in “Colloid Science”,D. H. Everett (ed.), (Specialist Periodical Reports), Vol. 1, Chap. 2, The Chemical Society, London, 1973.
G. Miksch, E. Liebermann, F. Kohler, Monatsh. Chem.100, 1574 (1969).
C. Y. Lu, R. F. Lama, Trans. Faraday Soc.63, 727 (1967).
D. H. Everett, R. T. Podoll, J. Colloid Interface Sci.82, 14 (1981).
S. Sircar, A. L. Myers, A. I. Chem. E. Journal19, 159 (1973).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Köster, F., Findenegg, G.H. Adsorption from binary solvent mixtures onto silica gel by HPLC frontal analysis. Chromatographia 15, 743–747 (1982). https://doi.org/10.1007/BF02261368
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02261368