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This work reports for the first time  7 Li-induced accelerator based production of  71,72,73,74 As,  75,76,77 Br and  73,75 Se radionuclides in their no-carrier-added (nca) state. After the decay of all short-lived radionuclides  75 Se and  73 As were only existing radionuclides in germanium oxide target, which were subsequently separated by liquid-liquid extraction (LLX) using trioctylamine (TOA) dissolved in cyclohexane as liquid ion exchanger. The presence of stable germanium in various fractions was examined by Inductively Coupled Plasma Optical Spectrometry (ICP-OES). At 0.1 M TOA and 10 M HCl concentration,  75 Se and stable Ge were extracted into the organic phase leaving  73 As in the aqueous phase. The bulk Ge was stripped back to the aqueous phase by 1 M NaOH, keeping  75 Se in the organic phase. Therefore complete separation between  73 As,  75 Se and bulk Ge was achieved.

Production and separation of no-carrier-added 73 As and 75 Se from 7 Li irradiated germanium oxide target