The substoichiometric determination of tungsten by neutron activation and isotope dilution analysis

Extraction into chloroform with substoichiometric amounts of toluene-3,4-dithiol has been studied for the determination of tungsten. The effect of interfering metal ions has been investigated. Based on this, tungsten in high-speed steel has been determined by isotope dilution and in aluminium by neu...

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Bibliographic Details
Published in:Analytica chimica acta 1971, Vol.53 (1), p.87-94
Main Authors: Baishya, N.K., Heslop, R.B.
Format: Article
Language:English
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Summary:Extraction into chloroform with substoichiometric amounts of toluene-3,4-dithiol has been studied for the determination of tungsten. The effect of interfering metal ions has been investigated. Based on this, tungsten in high-speed steel has been determined by isotope dilution and in aluminium by neutron activation. On propose un dosage du tungstène par extraction dans le chloroforme, contenant des quantités substoechiométriques de toluènedithiol-3.4. On examine l'influence de métaux étrangèrs. On décrit le dosage du tungstène dans l'acier rapide, par dilution isotopique et dans l'aluminium par activation neutronique. Für die Bestimmung von Wolfram wurde die Extraktion mit unterstöchiometrischen Mengen Toluol-3,4-dithiol in Chloroform erprobt. Der Einfluss störender Metallionen wurde untersucht. Hierauf gründete sich die Bestimmung von Wolfram in Schnelldrehstahl durch Isotopenverdünnung und in Aluminium durch Neutronenaktivierung.
ISSN:0003-2670
1873-4324
DOI:10.1016/S0003-2670(01)80074-X