Skip to main content
. 2019 Dec 20;9:19560. doi: 10.1038/s41598-019-56163-x

Figure 1.

Figure 1

(a) P8RI-based conjugates: HYNIC-D-P8RI (R = R1) and putative structure of its corresponding EDDA complexes after labeling: [99mTc(HYNIC-D-P8RI)(EDDA)] (R = R2) and [99mTc(HYNIC-D-P8RI)(EDDA2)] (R = R3). (be) Optimization of the radiolabeling process. b RP-HPLC chromatograms of: HYNIC-D-P8RI (UV detection); (ce) 99mTc-HYNIC-D-P8RI (radio detection) using tricine as coligand, EDDA as coligand and tricine/EDDA exchange strategy, respectively. The chemical or radiochemical purity (CP or RCP), as well as the retention time (tR) are indicated on each panel.