Results and Conclusion
Cyclotron-produced [11C]CO2 (~ 25 GBq EOB) was transferred to the FxMeI apparatus for reduction to [11C]CH4 and then passage over heated CoF3. The generated [11C]CHF3 was trapped in cold DMF (8.73 ± 1.18 GBq at 13 min from EOB, n = 15; RCP: 94%) for experiments on labeling 4-aminopyridines (2).