Abstract
Abstract A poly(crown ether)-immobilized silica behaves as a stationary phase for reversed-phase liquid chromatography as well as ion chromatography. The retention of several polar organic solutes in the reversed-phase liquid chromatography can be controlled easily by addition of alkali metal salts to the mobile phase, owing to electrostatic interaction between the solutes and the metal ion complexed by the crown ether moiety on the stationary phase.
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