EMISSION SPECTROMETRIC DETERMINATION OF THE GASEOUS ELEMENTS IN METALS. VI. OXYGEN IN VANADIUM

Journal Article · Sun May 01 04:00:00 EDT 1960 · Spectrochimica Acta (England) Divided into Spectrochim. Acta, Part A and Spectrochim. Acta, Part B

DOI:https://doi.org/10.1016/0371-1951(60)80038-0· OSTI ID:4138952

Fassel, V A; Altpeter, L L

The oxygen impurity content of vanadium metal can be determined spectrometrically by liberating it as carbon monoxide with a d-c carbon-arc discharge in pure argon. The arc discharge dissociates the evolved carbon monoxide and excites the emission spectrum of oxygen. The intensity ratios of the line pairs O 7772 A/Ar 7891 A and O 7775 A/Ar 7891 A are related to the oxygen concentration. It is shown that the rate and degree of evolution of the oxygen content is sensitively dependent on the environmental conditions in the supporting graphite electrode. Oxygen concentrations in the range from 0.004 to 0.5 weight per cent can be determined with a coefficient of variation of plus or minus 5 to 6 per cent of the amount present. (auth)

• Research Organization: Ames Lab., Ames, Iowa
• NSA Number: NSA-14-015621
• OSTI ID: 4138952
• Journal Information: Spectrochimica Acta (England) Divided into Spectrochim. Acta, Part A and Spectrochim. Acta, Part B, Journal Name: Spectrochimica Acta (England) Divided into Spectrochim. Acta, Part A and Spectrochim. Acta, Part B Vol. Vol: 16; ISSN SPACA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ARGON
CARBON MONOXIDE
CHEMISTRY
ELECTRIC ARCS
ELECTRIC DISCHARGES
ELECTRODES
EMISSION
GRAPHITE
IMPURITIES
OXYGEN
QUANTITATIVE ANALYSIS
SENSITIVITY
SPECTRA
SPECTROMETERS
VANADIUM