Spectrophotometric determination of microgram amounts of uranium with solochromate fast red

A method is described for the spectrophotometric determination of micro amounts of uranyl ions with the azo dye, Solochromate Fast Red, which reacts with uranium(Vl) in acetate-buffered methanol solution to form an orange-brown colored complex with maximum extinction at 490 mμ. Beer's law is ob...

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Veröffentlicht in:Analytica chimica acta 1961, Vol.25 (1), p.463-469
Hauptverfasser: Korkisch, J., Janauer, G.E.
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description A method is described for the spectrophotometric determination of micro amounts of uranyl ions with the azo dye, Solochromate Fast Red, which reacts with uranium(Vl) in acetate-buffered methanol solution to form an orange-brown colored complex with maximum extinction at 490 mμ. Beer's law is obeyed over a wide range of uranium concentrations. Only a limited number of foreign ions interfere, hence this method is generally applicable after removal of interfering ions by union exchange; e.g. uranium can be determined in marine materials. Une méthode est décrite pour le dosage spectrophotométrique de microquantités d'uranium(Vl), au moyen de rouge au chrome solide. En solution tampon, dans l'alcool méthylique il se forme un complexe brun orange, avec extinction maximum à 490 mμ. Les ions génants sont éliminés au préalable par échangeur d'ions. Beschreibung einer spektrophotometrischen Methode zur Bestimmung von Mikromengen Uran mit Solochrom Fast Red, das mit Uran einen orangebraun gefärbten Komplex bildet. Störende Fremdionen können mit einem lonenaustauscherharz entfernt werden.
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Beer's law is obeyed over a wide range of uranium concentrations. Only a limited number of foreign ions interfere, hence this method is generally applicable after removal of interfering ions by union exchange; e.g. uranium can be determined in marine materials. Une méthode est décrite pour le dosage spectrophotométrique de microquantités d'uranium(Vl), au moyen de rouge au chrome solide. En solution tampon, dans l'alcool méthylique il se forme un complexe brun orange, avec extinction maximum à 490 mμ. Les ions génants sont éliminés au préalable par échangeur d'ions. Beschreibung einer spektrophotometrischen Methode zur Bestimmung von Mikromengen Uran mit Solochrom Fast Red, das mit Uran einen orangebraun gefärbten Komplex bildet. 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Beer's law is obeyed over a wide range of uranium concentrations. Only a limited number of foreign ions interfere, hence this method is generally applicable after removal of interfering ions by union exchange; e.g. uranium can be determined in marine materials. Une méthode est décrite pour le dosage spectrophotométrique de microquantités d'uranium(Vl), au moyen de rouge au chrome solide. En solution tampon, dans l'alcool méthylique il se forme un complexe brun orange, avec extinction maximum à 490 mμ. Les ions génants sont éliminés au préalable par échangeur d'ions. Beschreibung einer spektrophotometrischen Methode zur Bestimmung von Mikromengen Uran mit Solochrom Fast Red, das mit Uran einen orangebraun gefärbten Komplex bildet. 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subjects CHEMISTRY
DYES
IMPURITIES
INTERFERING ELEMENTS
ION EXCHANGE
ORGANIC NITROGEN COMPOUNDS
PHOTOMETRY
QUANTITATIVE ANALYSIS
SPECTROSCOPY
TRACE AMOUNTS
URANIUM
URANIUM COMPLEXES
title Spectrophotometric determination of microgram amounts of uranium with solochromate fast red
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