Summary
A simple gas chromatographic method is presented for the determination of the quantity of the strongest adsorption sites on an adsorbent's surface. The method consists of the blockage of the sites with quasi-irreversibly adsorbed, known amount of a strongly interacting compound and subsequent measuring of the retention of a hydrocarbon during the presence of the blocking compound in the column. Heterogeneity of chromatographic grade silicas is investigated with this method.
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Nawrocki, J. How to count strong adsorption sites by gas chromatography?. Chromatographia 23, 722–726 (1987). https://doi.org/10.1007/BF02312663
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DOI: https://doi.org/10.1007/BF02312663