The sorption of 16 metal ions on silica gel impregnated with a mixture of Aliquat 336 and Methylthymol Blue was investigated. It was found that the sorption behavior depends upon the species and the pH of the loading solution. Alkali-metal ions were not retained under any of the investigated conditions. The retained metals can be eluted from the sorbent with dilute solutions of hydrochloric or perchloric acid without significant elution of the chelating reagent. The method was used for the purification of some salts from trace amounts of zinc, lead, cadmium, and copper. The effectiveness of the purification was confirmed by anodic stripping voltammetry. Some metal-ion mixtures were also separated by using column-extraction chromatography and stepwise elution with perchloric-acid solutions.