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  • 1 Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica Avda. del Libertador 8250 Buenos Aires República Argentina
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This paper summarizes the development and preparation procedures for two particulate preparations of153Sm, namely the hydroxyapatite (HA) particles and human serum albumin (HSA) microspheres. Preparation of153Sm-labeled hydroxyapatite particles and153Sm-labeled albumin microspheres were done in two steps. Radiolabeling efficiency was greater than 95% for hydroxyapatite particles and greater than 80% for albumin microspheres.