Abstract
An algorithm for the optimisation of separation in gas-liquid chromatography based on varying the composition of the stationary phase and the column temperature is presented using the critical parameter Rs≥0.75 (σRs→max). The stationary phase composition, on the basis of retention parameters expressed in terms of vapour pressure and activity coefficient has been derived. Determination of the composition of the stationary liquid was carried out by defining the noture of solute-solvent interactions using group additive value contributions to the activity coefficients. Predicting values on experimentally determined parameters reduced calculation errors by a factor 2 to 3.
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