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. Author manuscript; available in PMC: 2015 Jun 29.
Published in final edited form as: Nucl Med Biol. 2011 Oct 26;39(2):167–176. doi: 10.1016/j.nucmedbio.2011.07.011

Fig. 6.

Fig. 6

Size exclusion HPLC chromatography of 18F-radiolabeled exendin (9-39). The radiolabeled peptide was purified on an open G-15 column using USP PBS as eluant. A and B: UV and radioactivity HPLC profiles, respectively, of the radiolabeled peptide. The peak at 26.0 min in UV profile was due to the presence of PBS in the product solution.