ANALYTICAL METHOD FOR THE SPECTROGRAPHIC DETERMINATION OF LITHIUM, POTASSIUM, AND BARIUM IN URANIUM ORES AND CONCENTRATES BY THE CARRIER DISTILLATION METHOD

Technical Report · Tue Jan 01 04:00:00 EST 1963

OSTI ID:4131577

The ore or concentrate after ignition is diluted with spectrographically pure U/sub 3/O/sub 8/ and mixed with 7% by weight of sodium chloride carrier. The mixture is placed in a graphite cup which is made the anode for excitation in a d-c arc at 12 amp. Spectra are recorded photographically using a large spectrograph with either glass or quartz optics. Direct emission from the electrodes is avoided by use of an electrode screen. Spectra are evaluated visually or by microphotometer. The method is suitable for the determination of Li from 0.1 ppm upwards, Ba from 1 ppm upwards, and K from 10 ppm upwards, with respect to uranium in the appropriate dilution of the sample. Limits of detection with respect to sample are dependent on the total impurity content of the ore or concentrate. The precision is expected to be of the order of plus or minus 50% (3 x sigma) within the ranges. (auth)

• Research Organization: United Kingdom Atomic Energy Authority. Production Group, Springfields, Lancs, England
• NSA Number: NSA-18-008282
• OSTI ID: 4131577
• Report Number(s): PG-497
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BARIUM
CARRIERS
CHEMISTRY
COMBUSTION
DISTILLATION
EFFICIENCY
ELECTRIC ARCS
EXCITATION
FILTERS
GLASS
GRAPHITE
LITHIUM
MIXING
OPTICAL SYSTEMS
PHOTOGRAPHIC FILM
PHOTOMETRY
POTASSIUM
QUANTITATIVE ANALYSIS
QUARTZ
RECORDING SYSTEMS
SODIUM CHLORIDES
SPECTROSCOPY
U3O8
URANIUM ORES