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Radiolabeling of PET imaging agent [68Ga]NOTA-folate and SPECT imaging agent [99mTc]EC20. a HPLC radio chromatograms of [99mTc]EC20 (top) and [68Ga]NOTA-folate (bottom) after Sep-Pak C-18 purification. b Decay-corrected radiochemical yield (RCY), radiochemical purity, and specific activity for [99mTc]EC20 (n = 3) and [68Ga]NOTA-folate (n = 5) labeling reactions.
