Fig. 5From: Mass spectrometry imaging of L-[ring-13C6]-labeled phenylalanine and tyrosine kinetics in non-small cell lung carcinomaOverall enrichment of tissue free 13C6-Phe (a) and 13C6-Tyr (b) by MSI (blue) and LC-MS (orange), and 13C6-Phe protein enrichments (c) in homogenized tumor tissues by GC-C-IRMS. Enrichment is shown as mean MPE ± SE (%)Back to article page