1.
Appl Radiat Isot
; 176: 109847, 2021 Oct.
Artigo
em Inglês
| MEDLINE
| ID: mdl-34218122
RESUMO
Rhodium-105 (0.567 MeV ß-, 319 keV γ, 35.4 h half-life) was produced by neutron irradiation of enriched 104Ru (>99%) over multiple decades. A method is reported to recover the previously irradiated 104Ru (trapped in HCl as RuO42-) as the metal. The 104Ru was recovered in >93% yield and >98% enrichment. Neutron re-irradiation of the recycled 104Ru produced 105Rh, which was successfully radiolabeled with tetrathioethers in high yield. This recovery and recycling method for enriched 104Ru makes 105Rh production and utilization economical.