Figure 2

The percentage ratio of [13C]i to [12C]i in carrier increased linearly with Am value (determined by LC–MS/MS) for [11C]PBR28 preparations. The red line represents the mean value of the ratio in reference PBR28.
The percentage ratio of [13C]i to [12C]i in carrier increased linearly with Am value (determined by LC–MS/MS) for [11C]PBR28 preparations. The red line represents the mean value of the ratio in reference PBR28.