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An investigation of methods proposed for the analysis of the various forms of fluoride in toothpaste
Author(s) -
Cook Wayne D.
Publication year - 1981
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1981.tb05226.x
Subject(s) - toothpaste , fluoride , dentistry , chemistry , computer science , medicine , inorganic chemistry
A bstract — Analytical methods for the determination of soluble fluoride, soluble fluorine and total fluorine derivatives in toothpaste were investigated. Potentiometric determinations of soluble fluoride in TISAB‐toothpaste slurries were shown to be inaccurate. Based on recovery measurements, analyses for soluble fluoride and soluble fluorine derivatives in the supernatant liquid were found to be reliable provided the slurrying time was standardized. A gas chromatography method for the analysis of total fluorine, using the silane derivative of fluoride, was compared with methods involving ashing and distillation prior to colorimetric or potentiometric analysis.