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. 2021 Sep 21;11(49):31098–31123. doi: 10.1039/d1ra04480j

Production and purification parameters for 75Br and 76Br.

Radioisotope 75Br, 76Br
Target material Elemental selenium, selenides (NiSe, Ag2Se, CuAgSe, Cu2Se, PbSe)
Product purity
Major impurities 76Br, 72As, 73As, 75Se, 77Br
Separation method Thermochromatographic dry distillation
(300–1100 °C in Ar; water or ethanol for precipitate dissolution; NaOH trap)
Product separation yield 65–75%
Target recovery yield (100 − x)%, where ‘x’ is no. of times reused