The Hypothetical Perfect Gas Perturbation and The Determination of the Volume of the Adsorbed Phase in Gas-Solid Chromatographic Columns
Open Access
- 1 May 1968
- journal article
- Published by Oxford University Press (OUP) in Journal of Chromatographic Science
- Vol. 6 (5) , 257-265
- https://doi.org/10.1093/chromsci/6.5.257
Abstract
A new method, which consists of a trial-and-error energy-wise extrapolation of the retention volumes for a series of perturbing gases to a hypothetical “perfect gas,” is developed to yield an estimate of the free gas phase volume in the chromatographic column. The free gas phase volume in the column is a basic quantity for determining the amount of adsorption and the adsorbed volume. The method is applied to the system methane-ethane-silica gel, and the “adsorbed volume per molecule” is determined for the system as a function of the adsorption conditions.Keywords
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