Photometric determination of tungsten in rocks with trihydroxyfluorones

The interaction of tungsten(VI) with a series of 2,3,7-trihydroxyfluorones in the presence of cationic and non-ionic surfacants has been studied. Optimal conditions for the formation of the complexes and their spectrophotometric determination have been found. Possible mechanisms for the effect of th...

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Veröffentlicht in:	Talanta (Oxford) 1987, Vol.34 (1), p.215-218
Hauptverfasser:	Nazarenko, V.A., Antonovich, V.P., Veschikova, N.A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Earth sciences Earth, ocean, space Exact sciences and technology Geochemistry Geochemistry: general, methodology, regional studies
Online-Zugang:	Volltext
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Zusammenfassung:	The interaction of tungsten(VI) with a series of 2,3,7-trihydroxyfluorones in the presence of cationic and non-ionic surfacants has been studied. Optimal conditions for the formation of the complexes and their spectrophotometric determination have been found. Possible mechanisms for the effect of the surfactants are suggested. The method developed has been applied to determination of trace tungsten in rocks and silts.
ISSN:	0039-9140 1873-3573
DOI:	10.1016/0039-9140(87)80030-9