The development of a new potential bone pain palliation agent
188Re--HEDP
was described here. The ligand HEDP was synthesized giving a yield over 90% and the is8Re--HEDP was prepared with generator--produced 188Re. Labelling yield and radiochemical purity were determined by TLC and HPLC. The optimal labelling conditions were systematically investigated and the kit formulation was developed.The labelling efficiency of 188Re--HEDP was greater than 95%
and the radiochemicalpurity was still over 90% after stored at 15℃ for 12 hrs.