Patent Number: 
Section: claims

1. A method for performing electrochemical phase transfer, the method comprising:flowing a solution of 18F− ions in H2O between first and second elongate electrodes, wherein at least one of the first or second elongate electrodes is formed from a blend of polymeric material and carbon particles;applying a potential between the first and second elongate electrodes to trap 18F− ions on the positively-charged one of the first and second elongate electrodes;reversing the potential between the first and second elongate electrodes;flowing a solvent between the first and second elongate electrodes while reversing the potential between the first and second elongate electrodes; andgradually heating the electrode on which the 18F− ions were trapped while applying the potential between the first and second elongate electrodes. 2. The method of claim 1, wherein the carbon particles in the first and second elongate electrodes are formed from glassy carbon. 3. The method of claim 1, further comprising removing the H2O from between the first and second elongate electrodes after flowing the solvent between the first and second elongate electrodes. 4. The method of claim 1, wherein the potential is 10 volts or less. 5. The method of claim 1, wherein flowing the solution between the first and second elongate electrodes includes flowing the solution in a flow path defined by a planar gasket disposed between the first and second elongate electrodes. 6. The method of claim 1, wherein flowing the solution between the first and second elongate electrodes includes flowing the solution in a serpentine shaped flow path between the first and second elongate electrodes. 7. The method of claim 1, wherein flowing the solution between the first and second elongate electrodes includes flowing the solution in a flow path sandwiched between the first and second elongate electrodes oriented parallel to each other. 8. The method of claim 1, wherein flowing the solution between the first and second elongate electrodes includes flowing the solution in a flow path between the first and second elongate electrodes that are oriented co-planar with respect to each other. 9. The method of claim 1, wherein flowing the solution between the first and second elongate electrodes includes flowing the solution in a flow path that outwardly tapers with respect to a flow direction of the solution in the flow path. 10. The method of claim 1, wherein the potential is 5 volts or less. 11. The method of claim 10, wherein flowing the solution between the first and second polymer-carbon electrodes includes flowing the solution in a flow path defined by a planar gasket disposed between the first and second polymer-carbon electrodes. 12. The method of claim 10, wherein flowing the solution between the first and second polymer-carbon electrodes includes flowing the solution in a serpentine shaped flow path between the first and second polymer-carbon electrodes. 13. The method of claim 10, wherein flowing the solution between the first and second polymer-carbon electrodes includes flowing the solution in a flow path sandwiched between the first and second polymer-carbon electrodes oriented parallel to each other. 14. A method comprising:flowing a solution of 18F− ions in water between first and second polymer-carbon electrodes;trapping 18F− ions on the first polymer-carbon electrode by applying a potential between the first and second polymer-carbon electrodes;releasing at least some of the 18F− ions from the first polymer-carbon electrode by reversing the potential between the first and second polymer-carbon electrodes; andextracting the at least some of the 18F− ions released from the first polymer-carbon electrode by flowing a solvent between the first and second polymer-carbon electrodes while reversing the potential between the first and second polymer-carbon electrodes. 15. The method of claim 14, further comprising heating the first polymer-carbon electrode while applying the potential between the first and second polymer-carbon electrodes. 16. The method of claim 14, wherein the first and second polymer-carbon electrodes are formed from a blend of polymeric material and carbon particles. 17. The method of claim 16, wherein the carbon particles in the first and second polymer-carbon electrodes are formed from glassy carbon. 18. The method of claim 14, further comprising removing the water from between the first and second polymer-carbon electrodes after flowing the solvent between the first and second elongate electrodes. 19. A method comprising:flowing a solution of 18F− ions in water along a serpentine shaped flow path disposed between first and second electrodes;applying a potential between the first and second electrodes to collect 18F− ions on the first electrode;changing the potential between the first and second electrodes to release at least some of the 18F− ions from the first electrode; andextracting the at least some of the 18F− ions released from the first electrode by flowing a solvent between the first and second electrodes while changing the potential between the first and second electrodes. 20. The method of claim 19, wherein the first and second electrodes are co-planar and flowing the solution includes flowing the solution in the serpentine shaped flow path that is disposed in a common plane as the first and second electrodes.