Fig. 4From: An HPLC and UHPLC-HRMS approach to study PSMA-11 instability in aqueous solutionChromatograms of 3 (a), 12 (b), and 50 (c) μg/mL PSMA-11 standard solutions injected at 3 days from preparation and chromatogram of a 50 μg/mL PSMA-11 standard solution injected 6 months after the preparation (d)Back to article page