Figure 3.
Radioactive HPLC profiles of 99mTc-RSD-Lys-(Arg11)CCMSH (A), 99mTc-RFD-Lys-(Arg11)CCMSH (B) and 99mTc-RfD-Lys-(Arg11)CCMSH (C) in mouse serum after incubation at 37 °C for 24 h. The arrows denote the original retention times of 99mTc-RSD-Lys-(Arg11)CCMSH (12.5 min), 99mTc-RFD-Lys-(Arg11)CCMSH (18.4 min) and 99mTc-RfD-Lys-(Arg11)CCMSH (20.8 min) prior to the incubation in mouse serum.