SPECTROPHOTOMETRIC DETERMINATION OF CHROMIUM IN URANIUM WITH 8- HYDROXYQUINALDINE

Journal Article · Wed Feb 01 04:00:00 EST 1961 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60170a024· OSTI ID:4107026

Motojima, K; Hashitani, H

An analytical procedure for the spectrophotometric determination of microgram quantities of chromium in uranium, based on the extraction of the 8- hydroxyquinaldine (2-methyl-8-quinolinol) complex with chloroform and photometry of the extract, is described. Extraction of uranium was prevented by the use of acetic acid as a masking agent. The behaviors of the common ions were investigated. To eliminate the interference of iron and other elements, the chloroform extract was washed with a carbonate-cyanidehydroxylamine mixture. The proposed method is precise and accurate, and is useful for the determination of down to 1 ppm of chromium in uranium. (auth)

• Research Organization: Japan Atomic Energy Research Inst., Ibaraki-ken, Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-008692
• OSTI ID: 4107026
• Journal Information: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed., Journal Name: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. Vol. Vol: 33; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETIC ACID
AMINES
BEHAVIOR
CARBONATES
CHEMISTRY
CHLOROFORM
CHROMIUM
COMPLEXES
CYANIDES
HETEROCYCLICS
HYDROXYLAMINE
IONS
IRON
MASKING AGENTS
METHYL RADICALS
ORGANIC NITROGEN COMPOUNDS
PHENOLS
PHOTOMETRY
QUANTITATIVE ANALYSIS
QUINOLINE
SOLUTIONS
SOLVENT EXTRACTION
SPECTRA
URANIUM
USES