Ion Exchange Separation of Rhodium and Iridium

Chromatography and Electrochromatography

“…Figure7. Schematic distribution, from a narrow zone in a pH gradient, of two substances, a and 6with isoelectric points corresponding to particular regions in gradient This distribution of the solutes corresponds with the separations illustrated by Figure5.…”

“…Ion exchange columnar chromatography is being widely utilized for the separation of organic and inorganic substances, both cations and anions (43). It is playing an indispensable role in the separation and isolation of the thiourea complexes (7); the rare earths (21, 88,89,91,92), and the transuranium elements (21, 95). Surprisingly, the anion exchange resins serve for the sorption and separation of many cations in acid solutions (56,95).…”