Extended Data Fig. 8: Comparison of HPLC radiotrace of H-Leu-Phe(4-[18F]F)-Glu-Met-Lys-NH2 obtained by manual synthesis with UV-trace (290 nm) of authentic reference (column 2).
From: Deoxyfluorination of phenols for chemoselective 18F-labeling of peptides
Upper: radiotrace of 18F-14 obtained by manual synthesis (radiochemical purity = 96%), lower: UV-trace of authentic reference standard 19F-14 monitored at 290 nm, The spatial separation between the diode array detector and the radioactivity detector introduces a delay that results in an offset of ~0.5 minutes between corresponding peaks in the radiochromatogram and UV-chromatogram.
