Column Chromatographic Separation of Cations by Anion Exchange Chromatography using PAR as Complexing Agent
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Depanment of Chemistry, Banaras Hmdu University, Varanasi-221 005
Manuscript received 5 November 1992, revtsed 22 Match1994, accepted 6 April 1994
The anion-exchange behaviour of a number of metal-4-(2-pyridylazo)resorcinal (PAR) complexes on Dowex-1-XB (Cl--form) in ethanolic medium has been studied. The distribution coefficients were determined by batch technique for predicting the conditions for the possible separations on column. The effect of pH and different organic solvents on the distribution coefficients has also been studied. The column chromatographic separations achieved were quantitative. The distribution coefficients, column elution behaviour of metal complexes and the results of separation of synthetic mixtures along with elution curves are presented.
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