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An example of a HPLC chromatogram of [68Ga]-DOTATOC using the HPLC system previously described, a mobile phase consisting of 0.1% TFA in 5% acetonitrile/water (solution A) and 0.01% TFA in 95% acetonitrile/water (solution B) and a gradient from 0–2 min 100% A, 2–15 min to 100% B (flow rate: 1.2 ml/min). The 68Ga-labeled peptide has an approximate retention time of 9 ± 3 min (refs. 13,14).
