Figure 2From: Characterization of fast-decaying PET radiotracers solely through LC-MS/MS of constituent radioactive and carrier isotopologues LC-MS/MS of the same [11 C]PBR28 preparation at four time-points of carbon-11 decay. The ion chromatogram overlay showing peaks for [11C]species as it decayed (A) and unchanging peak for [M + 1]carrier (B) during the same analysis. Their respective product ions m/z 120 and 122 were monitored.Back to article page