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L. Snyder, H. Poppe (1980)
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Utilizing experimentally determined capacity ratios and “a priori” calculated activity coefficients of the solutes the selectivity of separation in a liquid-solid chromatographic system is studied. Both the experimentally determined selectivity factor ( α ) and the calculated selectivity factor in the mobile phase ( α m ) of a solute pair fit a quadratic function of the concentration of eluting solvent components. Comparing these factors it is shown that the selectivity in the stationary phase ( α s ) is fairly constant when the composition of the mobile phase is changed.
Chromatographia – Springer Journals
Published: Dec 1, 1987
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