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Studies on the Separation of No-carrier-added Gold from Neutron Activated Platinum Target

No-carrier-added Au produced in neutron activated platinum target matrix as a β" decay product of Pt has been separated through liquid-liquid extraction (LLX) using the liquid anion exchanger, trioctylamine (TOA), as an extractant from aqueous HNO3 medium. Also traces of gold and iridium, the presence of which have been indicated by the formation of the (n,y) activation products, Au and Ir, for the corresponding elements, the contaminants in the target element have been separated from platinum using TOA and Aliquat-336, respectively, as the anion exchangers. Production, extent of separation and purity of the radiotracers at different stages of their LLX separation have been examined by taking recourse to y-ray spectroscopy.