Patent ID: 8147804

Claim:
Method for isolating a 68 Ga radionuclide from a 68 Ge/Ga generator eluate which contains 68 Ga in ionic form, said method comprising feeding the 68 Ge/Ga generator eluate directly into an exchanger and absorbing 68 Ga quantitatively on the exchanger, and simultaneously chemically and radiochemically purifying the 68 Ga and combining the 68 Ga radionuclide with a labelling precursor comprising a ligand to form a radiopharmaceutical, wherein the exchanger is a cation exchanger and the cation exchanger is a highly acidic cation exchanger comprising a matrix from the group of polystyrene/divinylbenzene (DVB) resins, with a DVB concentration from 2 to over 20% in reference to cross-linked polymers of the resins and the matrix of the cation exchanger is loaded with 68 Ga.