Analytical methods for fissionable material determinations in the nuclear fuel cycle. Progress report, October 1, 1977--September 30, 1978

Technical Report · Mon Jan 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/6448585· OSTI ID:6448585

Waterbury, G R ^[1]

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1. comp.

Work has continued on the development of dissolution techniques for difficult-to-dissolve nuclear materials, development of methods and automated instruments for plutonium and uranium determinations, preparation of plutonium-containing materials for the Safeguards Analytical Laboratory Evaluation (SALE) program, preparation of plutonium materials for distribution by the National Bureau of Standards (NBS) as standard reference materials (SRMs), measurement of longer plutonium isotope half-lives, and analysis of SALE uranium materials. New tasks include the development of methods and automated instruments for the determination of thorium and uranium, and an evaluation of the ion-exchange-bead technique for the mass spectrometric measurement of uranium and plutonium isotope distributions. Completed tasks include the measurements of ion exchange distributions of over 50 elements on cation exchange resins from nitric acid media and anion exchange resins from hydrobromic and hydriodic acid media. Using a newly developed procedure, the LASL automated spectrophotometer was modified to determine microgram levels of uranium and to determine milligram levels of uranium and plutonium. Construction of an automated controlled-potential analyzer for the determination of plutonium is nearing completion. Apparatus and procedures for the separation and complexometric titration of thorium and uranium are being developed.

• Research Organization: Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6448585
• Report Number(s): LA-7553-PR
• Country of Publication: United States
• Language: English

Related Subjects

055001* -- Nuclear Fuels-- Safeguards
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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400104 -- Spectral Procedures-- (-1987)
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
COMPLEXOMETRY
DISSOLUTION
ELEMENTS
EVEN-EVEN NUCLEI
HALOGEN COMPOUNDS
HEAVY NUCLEI
HYDRIODIC ACID
HYDROBROMIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INVENTORIES
IODINE COMPOUNDS
ION EXCHANGE
ISOTOPES
MASS SPECTROSCOPY
METALS
NITRIC ACID
NUCLEI
PLUTONIUM
PLUTONIUM 240
PLUTONIUM ISOTOPES
RADIOISOTOPES
RESEARCH PROGRAMS
SAFEGUARDS
SPECTROPHOTOMETRY
SPECTROSCOPY
STANDARDS
THORIUM
TITRATION
TRANSURANIUM ELEMENTS
URANIUM
VOLTAMETRY
YEARS LIVING RADIOISOTOPES