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 |