Fig. 4From: Plasma radio-metabolite analysis of PET tracers for dynamic PET imaging: TLC and autoradiographyLine profile of [18F]FEPPA. Line profile of [18F]FEPPA reference, plasma from a pig obtained at 5Â min and 1Â h post tracer injection. The y-axis is detected counts, and the x-axis is distance in mm. The corresponding autoradiography image is displayed above the profile. The direction of movement of the solvent front from capillary action was from left to rightBack to article page