The present work demonstrates the utility of polymer embedded nanocrystalline titania (TiP) as a new, accessible and viable solid sorbent for the chromatographic separation of high specific activity 77 As from neutron irradiated natural GeO 2 . Experimental parameters such as distribution ratios (K d ), equilibrium sorption capacity, breakthrough capacity and separation yields were determined. A two-step ion-exchange procedure was developed to avail 77 As, from irradiated Ge in alkaline medium. The first step involved removal of the bulk Ge from 77 As by selective sorption of Ge ions on a TiP column at pH 13. Subsequently, the effluent solution containing 77 As was further purified and concentrated by sorption on a small TiP column at pH 10. 77 As could be eluted from the second column in 2-3 mL of 0.1 M NaOH solution with[80% radiochemical yield. The 77 As obtained by this method was found to have insignificantly small level of radiocontaminants.

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