EXTRACTION CHROMATOGRAPHIC STUDIES OF ALUMINUM(III) WITH VERSATIC ACID AND ITS ANALYTICAL APPLICATIONS

A selective method has been developed for reversed phase extraction ch romatographic studies of Al-III with Versatic-10 as a stationary phase on a column of silica gel. Quantitative extraction of Al-III has been achieved from 0.02 M acetate buffer solution in the pH range 4.75-5.5 . The extracted Al-III has been stripped with 2.5 M nitric acid and es timated spectrophotometrically. The effects of pH, stripping agent, fl ow rate on extraction and elution behaviour have been examined. Exchan ge capacity and breakthrough capacity of the exchanger have been deter mined. Al-III has been separated from several synthetic multicomponent mixtures. The method has also been applied for the analysis of variou s ores and alloy samples.