Separation of no-carrier-added ${}^{71,72}$As from 46 MeV alpha particle irradiated gallium oxide target

No-carrier-added (NCA) ${}^{71,72}$As radionuclides were produced by irradiating gallium oxide target by 46 MeV α-particles. NCA ${}^{71,72}$As was separated from the target matrix by liquid-liquid extraction (LLX) using trioctyl amine (TOA) and tricaprylmethylammonium chloride (aliquat-336) diluted in cyclohexane. The bulk gallium was quantitatively extracted into the organic phase leaving ${}^{71,72}$As in the aqueous phase. Complete separation was observed at 3 M HCl + 0.1 M TOA and 2 M HCl + 0.01 M aliquat-336.