Published February 1975 | Version v1
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The determination of vanadium, chromium, manganese and arsenic in titanium dioxide by neutron activation analysis

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Description

For the determination of vanadium, chromium, manganese and arsenic in titanium dioxide several different neutron activation analysis procedures have been employed. Vanadium has been determined via 52V after a short time irradiation of the hydrofluoric acid solution of titanium dioxide and extraction by N-benzoyl-N-phenylhydroxylamin. For the analysis of chromium the sample is dissolved in potassium disulfate, chromium is extracted and determined by γ-measurement of 51Cr. Manganese can be measured by a γ-ray spectrometer after reactor irradiation without chemical separation. Arsenic has to be carefully separated, above all from antimony which is usually present in a large excess. This has been done by a newly developed column extraction procedure, so that 76As can be measured without interference. The development of the procedures and the completion of the analyses are fully described. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Zur Bestimmung von Vanadin, Chrom, Mangan und Arsen in Titandioxid wurden verschiedene Verfahren der Neutronenaktivierungsanalyse eingesetzt. Vanadin wurde nach einer Kurzzeitbestrahlung der flussauren Aufschlussloesung extrahiert und ueber 52V bestimmt. Zur Analyse von Chrom wird die Probe nach der Bestrahlung mit Kaliumbisulfat aufgeschlossen, Chrom wird extrahiert und ueber 51Cr bestimmt. Mangan kann nach der Aktivierung ohne chemische Abtrennung gemessen werden. Fuer Arsen ist vor allem eine saubere Abtrennung von dem in grossem Ueberschuss vorhandenen Antimon erforderlich. Sie wird mit einem neu entwickelten Saeulenextraktionsverfahren ausgefuehrt, so dass 76As ohne Stoerung gemessen werden kann. Die Entwicklung der Verfahren und die Ausfuehrung der Analysen werden beschrieben. (orig.)

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Additional details

Additional titles

Original title (German)
Die Bestimmung von Vanadin, Chrom, Mangan und Arsen in Titandioxid durch Neutronenaktivierungsanalyse

Publishing Information

Imprint Pagination
60 p.
Report number
Juel--1170

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
6203696
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ACTIVATION ANALYSIS; ARSENIC; CHROMIUM; DISSOLUTION; EXTRACTION CHROMATOGRAPHY; GAMMA SPECTRA; INTERFERING ELEMENTS; LABORATORY EQUIPMENT; MANGANESE; NEUTRON REACTIONS; NONDESTRUCTIVE ANALYSIS; PARTITION; SOLVENT EXTRACTION; TITANIUM OXIDES; TRACE AMOUNTS; TRACER TECHNIQUES; VANADIUM
Descriptors DEC
BARYON REACTIONS; CHALCOGENIDES; CHEMICAL ANALYSIS; CHROMATOGRAPHY; ELEMENTS; HADRON REACTIONS; ISOTOPE APPLICATIONS; METALS; NUCLEAR REACTIONS; NUCLEON REACTIONS; OXIDES; OXYGEN COMPOUNDS; SEMIMETALS; SEPARATION PROCESSES; SPECTRA; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Notes
14 figs.; 8 tabs.; 36 refs.