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Analysis of residual solvents in 2-[(18)F]FDG by GC
M A Channing1, B X Huang, W C Eckelman
1PET Department, Warren G. Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA.
Abstract:
A gas chromatography method has been developed for the measurement of the residual acetone, ethanol and acetonitrile in 2-deoxy-2-[(18)F] fluoro-D-glucose (2-[(18)F]FDG), in accordance with the pending FDA revision on the drug. The detections limits were 0.1 ppm for all three solvents. Good precision and linearity were obtained over ranges spanning the allowable concentration levels proposed by FDA. The amounts of the three solvents in our routine 2-[(18)F]FDG products have been found well below the maximum permissible levels. The method is very amenable to quality control testing for the radiopharmaceutical.