Fig. 4

A representative HPLC chromatogram (method C) of the non-polar fraction of the brain homogenate at 10 min after injection, showing both [18F]5 (Rt 11 min) and a labelled metabolite (Rt 9 min)
A representative HPLC chromatogram (method C) of the non-polar fraction of the brain homogenate at 10 min after injection, showing both [18F]5 (Rt 11 min) and a labelled metabolite (Rt 9 min)