The invention relates to a method and a kit for preparing a radiopharmaceutical, the method comprising the steps:elution of a 68Ge/68Ga-Generator using hydrochloric acid as an eluent for obtaining a generator eluate comprising 68Gallium,feeding the generator eluate through a cation exchange cartridge, which collects the 68Gallium,separating the used eluent,eluting the 68Gallium from the cation exchange cartridge using a solution comprising sodium chloride and hydrochloric acid and feeding the resulting eluate into an aqueous precursor mixture comprising at least a labelling precursor thereby forming a reaction solution.
