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Determination of Fluoride by Alf-MAS in N2O-C2H2 Flame: Application to Toothpaste

✍ Scribed by M. Gomez; M.A. Palacios; C. Camara

Book ID
102615152
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
198 KB
Volume
47
Category
Article
ISSN
0026-265X

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✦ Synopsis

A new chemical method for the determination of fluoride in samples with high fluoride content such as toothpaste is reported. It is based on the formation of the AlF molecule in a (\mathrm{N}{2} \mathrm{O}-\mathrm{C}{2} \mathrm{H}_{2}) flame. This radical absorbs radiation at (227.45 \mathrm{~nm}) from a (\mathrm{Pt}) hollow cathode lamp. The developed method is very fast and relatively free from interference and has been applied to determine ionic and covalently bound fluoride in toothpaste. 1993 Academic Press, Inc.

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Triple quadrupole mass spectrometry as applied to flame diagnostics: study of the C2H4/N2O/Ar Flame
✍ Stephen L. Howard; Joyce E. Newberry; Rosario C. Sausa; Andrzej W. Miziolek πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 704 KB

A recently developed research apparatus for characterization of low-pressure premixed flames has been developed and was used to characterize the C2H4/N2O/Ar flame at 20 torr. This instrument incorporates several diagnostic techniques in one apparatus so that individual techniques can be quantitative