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Trapping efficiency on the cartridge as a function of the starting volume of [18F]fluoride. Also shown is the “breakthrough”, i.e. the fraction of initial [18F]fluoride found in the cartridge waste as well as fraction of activity lost within the system (i.e. not in radionuclide vial, trapped in cartridge, or in cartridge waste). Data points represent an average of 3 repeats and error bars represent the standard deviation. Dashed lines are guides for the eye.
