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Updated: Oct 2, 2026

Application and Methodology of the Non-destructive 19F Time-domain NMR Technique to Measure the Content in Fluorine-containing Drug Products
Published on: August 22, 2017
Simultaneous quantitative determination of fluorine and sodium monofluorophosphate in oral hygiene products
1Department of Applied Chemistry, Chia Nan University of Pharmacy and Science, Tainan, Taiwan 71710, R.O.C.
Abstract:
An ion chromatographic method for simultaneous quantitative determination of fluorine and sodium monofluorophosphate in oral hygiene products is described. The liquid chromatographic system consisted of an IC A1 polymethacrylate-based anion exchanger and carbonate buffer (pH 9.85) as the mobile phase with a conductive detector. Various excipient ions were investigated with respect to their interference with the determination of fluoride. Comparison with results obtained from a fluoride-ion electrode technique show good agreement.
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