The SnO₂⁶⁸Ge/⁶⁸Ga generator system is widely used in medical imaging to provide a regular supply of the radionuclide ⁶⁸Ga (T_½ = 68.3 min) for positron emission tomography (PET). These generators are also used to supply ⁶⁸Ga for the fabrication of tracer particles for application in positron emission particle tracking (PEPT). The tracer particles are fabricated by radiolabelling ion exchange resins such as Purolite NRW100 with ⁶⁸Ga; however, contaminants from the degradation of the SnO₂ column over time interfere with the uptake of ⁶⁸Ga. The major contaminants are Zn(II), Fe(III) and Sn(IV) with ⁶⁸Ge (IV) being eluted from the column as it degrades. This paper describes an improved method to purify the ⁶⁸Ga supply using an Amberchrom CG-71m absorption resin column integrated into a newly designed separation panel. This method reduces the amount of Zn(II) and Fe(III) in the ⁶⁸Ga eluate and improves the radiolabelling performance by more than 10% when compared to the un-purified product. The method can extend the life-span of the generator by several months.