||Radiometric method for the determination of uranium in water : single-laboratory evaluation and interlaboratory collaborative study /
Bishop, C. T. ;
Casella, V. R. ;
Glosby, A. A.
||Mound Facility, Miamisburg, OH.;Department of Energy, Washington, DC.;Environmental Monitoring and Support Lab., Las Vegas, NV.
|| U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory ; For sale by the National Technical Information Service,
Uranium isotopes ;
Water analysis ;
Radioactive contaminants ;
Chemical analysis ;
Ion exchanging ;
Water pollution ;
Water pollution detection ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||viii, 48 pages : illustrations ; 28 cm.
The results of a single-laboratory evaluation and an inter-laboratory collaborative study of a method for determining uranium in water are reported. The method consists of coprecipitation of uranium with ferrous hydroxide, a nitric-hydrofluoric acid dissolution if the sample contains sediment, separation of the uranium by anion exchange chromatography, and electrodeposition, followed by alpha pulse height analysis. Four reference samples, ranging from 1 to 2,000 disintegrations per minute per liter, were prepared for evaluating the method. These samples consisted of two actual environmental samples, a substitute ocean water sample, and a sample containing sediment. Measured uranium concentrations for these samples agreed to within 5% of the reference concentrations, while tracer recoveries averaged about 70%. The precision of the collaborative study results approached counting statistics errors for the three water samples which did not contain sediment.
"EPA-600/7-79-093." "April 1979." Contract no. EPA-IAG-D6-0015. "Project officer, Paul B. Hahn." Includes bibliographical references. Microfiche.