High specific activity is also required for isotopes meant to be used for labeling hormones and other biological substances for radioimmunoassays and other related assay procedures. Many imaging and therapeutic applications are dependent on the use of concentrated solution of radionuclides. Concentrated solutions of radionuclide provide good labeling yield of molecules. With the passage of time, the eluates obtained from radionuclide generator systems yield low concentration of radionuclides, hence concentration techniques will enhance the working life of radionuclide generators. In this regard the concentration technique developed in this study for Ga-68 will certainly increase the purity of radionuclide as well as ensure the optimum use of generator system in their working life time.