JOURNAL ARTICLE

Electrochemical concentration of no-carrier-added [(18)F]fluoride from [(18)O]water in a disposable microfluidic cell for radiosynthesis of (18)F-labeled radiopharmaceuticals

Hidekazu Saiki, Ren Iwata, Hiroaki Nakanishi, Rebecca Wong, Yoichi Ishikawa, Shozo Furumoto, Ryo Yamahara, Katsumasa Sakamoto, Eiichi Ozeki
Applied Radiation and Isotopes 2010, 68 (9): 1703-8
20189817
The realization of the electrochemical method for microfluidic radiosynthesis is described for concentrating aqueous no-carrier-added [(18)F]fluoride into an aprotic solvent in a disposable microfluidic cell. Flowing aqueous [(18)F]fluoride was introduced into a disposable microfluidic cell (16microL) under an electric potential (10V), followed by anhydrous MeCN. The trapped [(18)F]fluoride was released in MeCN containing Kryptofix 222-KHCO(3) (ca. 60microL) under heat and a reversed potential (-2.5V). An automated module provided the [(18)F]fluoride ready for subsequent microfluidic radiosynthesis in overall radiochemical yields of 60% within 6min.

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