Abstract
[ 18F]Fluoride was recovered from [ 18O]target water in high yield by trapping it on a microcolumn of an anion exchange resin (20 mg Dowex 1 × 8, 400 mesh) and subsequent elution of the column (in the reverse direction) by aqueous carbonic acid at 52 atm. The carbonic acid was removed from the [ 18F]fluoride solution by brief heating at 85°C, 1 atm. Thus no extraneous electrolyte was introduced by the extraction process. The resulting bicarbonate form of the resin was immediately capable of trapping further [ 18F]fluoride, permitting a repetitive remote system for recovery of [ 18O]water. Chloride was substantially retained on the column permitting separation of [ 18F]fluoride from the former.
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Schedule a callMore From: International Journal of Radiation Applications & Instrumentation. Part A, Applied Radiation & Isotopes
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