Radiochromatography in migration studies

Liquid chromatography in combination with radioactivity detection, i.e. radiochromatography appears as a facile experimental technique to determine important physico-chemical properties such as a permeability, porosity, dispersion-, diffusion-, and sorption charateristics of geological material. The application of conventional radiochromatography appears advantageous in studies of environmental processes. The basic principles of radiochromatography are discussed and subsequently illustrated by selected examples, comprising cesium migration in chalk, europium sorption to crushed salt, iodination of humic acids and phenol, and the enzyme mediated incorporation of phenol in humic acids. (au) (20 refs.)