ANALYTICAL CHEMISTRY OF URANIUM. COMMUNICATION 1. ON THE LUMINESCENT DETERMINATION OF URANIUM

Journal Article · Tue Mar 01 04:00:00 EST 1960 · Zhur. Anal. Khim.

OSTI ID:4160864

Grigor'ev, V F; Luk'yanov, V F; Duderova, E P

An electric furnace with a platinum case is proposed for preparing luminescent samples with high accuracy. The mean reproducibility of the luminescence of the disks made of a fluoro-carbonate mixture and a pure solution of the uranyl salt is plus or minus 2%. A tube with a piston is proposed for proportioning the flux powder. The mean accuracy of proportioning is plus or minus 1.5%. An apparatus is proposed for granulating the flux. Granules are uniform in their composition and have high breaking strength. The weight of the granules is 110 mg. The reproducibility of the weight is plus or minus 1%. An improved rapid modification of the method of preparing beads is suggested. The mean reproducibility of the luminescence of the beads made of sodium fluoride and a pure solution of the uranyl salt is 6 to 7%. The design of a photoelectric instrument for measuring the intensity of the luminescence of disks, beads, and powders is developed. The deviation of the pointer in the range of maximum sensitivity by the whole scale of 150 mm corresponds to the concentration of uranium in the disk being equal 0.08 gamma /g. The readings of a sample with tbe uniformly distributed uranium are reproducible within the limits plus or minus 1.5%. Methods for determining uranium without the preliminary purification were tested on the standard ores. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-017829
• OSTI ID: 4160864
• Journal Information: Zhur. Anal. Khim., Journal Name: Zhur. Anal. Khim. Vol. Vol: 15
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

CHEMISTRY
FURNACES
LUMINESCENCE
MEASURED VALUES
PHOTOELECTRIC EFFECT
POWDERS
QUANTITATIVE ANALYSIS
SENSITIVITY
SODIUM FLUORIDES
STANDARDS
URANIUM
URANIUM ORES
URANYL COMPOUNDS