Gouaillardou D, Conti M L
Int J Rad Appl Instrum A. 1987;38(2):103-6. doi: 10.1016/0883-2889(87)90004-9.
This work describes the determination of the charge for various 99mTc-Sn-phosphonate complexes. The variation of the Sn/P ratio using an HMDP ligand produces complexes with different negative charges. Biological distribution studies show superior bone uptake of strongly negative charged complexes.