SEPARATION OF FLUORIDE-ION BY EXTRACTION WITH TRIPHENYLTIN CHLORIDE -APPLICATION FOR NAA OF FLUORINE BY MEANS OF 14-MEV NEUTRONS

Authors
KOLOTOV VP ARAFA EA
Citation
Vp. Kolotov et Ea. Arafa, SEPARATION OF FLUORIDE-ION BY EXTRACTION WITH TRIPHENYLTIN CHLORIDE -APPLICATION FOR NAA OF FLUORINE BY MEANS OF 14-MEV NEUTRONS, Journal of radioanalytical and nuclear chemistry, 172(2), 1993, pp. 357-362
Citations number
3
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
172
Issue
2
Year of publication
1993
Pages
357 - 362
Database
ISI
SICI code
0236-5731(1993)172:2<357:SOFBEW>2.0.ZU;2-0
Abstract
The separation of fluoride by extraction with toluene solution of trip henyltin chloride has been studied. Quantitative isolation of fluoride from solutions with a wide acidity range (pH 4.0-11.5) has been estab lished. It is suggested that interferences by Ca, Mg, Fe, and Al can b e avoided by masking these elements using sulfate and hydroxyde ions. Interference by phosphate ions can be overcome in a similar fashion. T he halogenated species can be masked by mercury nitrate. Detection lim it for fluorine determination is about 3 mug for a neutron generator f lux of 2.11(11) n . cm-1 . s-1. A method for fluorine assay in water u sing a neutron generator with a detection limit of 1 ppm has been deve loped.