Abstract
On the basis of the model for partition chromatography of ionic solutes in the presence of background electrolytes, theoretical equations are developed to describe the retention dependence of ionic solutes on the composition of electrolytes in the mobile phase. The theoretical equations were tested by calculating the expected capacity factors of various inorganic ions in the presence of two or three background electrolytes using experimental values obtained in a single electrolyte system. The predictions from the equations agreed well with experimental retention data on hydrophilic polymer packings for both binary (acetone-water) and single solvent (water) systems.
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