Abstract
Abstract The development of a unique chromatographic separation method based on liquid foams is described. The sorption bed is liquid foam moving in a tall vertical column in plug flow manner. The foam is eluted from the top counter-currently to its motion. The mechanism of separation of mixtures is based on adsorption to bubble surface and/or utilizing the foam producing surfactant as a selective carrier. It is shown how this technique can be used for pulse as well as for continuous chromatographic separations. Results of some systematic studies on the effect of two independent variables, foam velocity and elution rate, on separation of mixtures of organic dyes is presented and discussed.
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