|Author||Motojima, K. ♦ Hashitani, H.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||CHEMISTRY ♦ ACETIC ACID ♦ AMINES ♦ BEHAVIOR ♦ CARBONATES ♦ 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|
|Abstract||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)|
|Learning Resource Type||Article|
|Publisher Department||Japan Atomic Energy Research Inst., Ibaraki-ken, Japan|
|Organization||Japan Atomic Energy Research Inst., Ibaraki-ken, Japan|
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