A NEW MODEL OF GAS LIQUID CHROMATOGRAPHY APPLYING THE KINETICS OF GASEOUS ADSORPTION AT SURFACES

概要

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The dependence of the adjusted retention volume, V1R, in gas liquid chromatograph on carrier gas flow rate, u, was studied for several solutes using 5% squalane stationary phase and 40-60 mesh fluoropak 8 as support. In all cases V1R increases in a stepwise fashion as u increases. In each step the rate o increase of V1R is lntitially high, but gradually decreases until V1R levels off. V1R is further shown to be directly proportional to n, the number of adsorbant sites in the stationary phase recognised by a single analyte molecule during its passage through the column and, based on this relationship between V1R and n, a new model of gas chromatography applying the kinetics of gaseous adsorption at surfaces, and whose predictions are consistent with the experimental data above, is presented.
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