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ACID DISSOLUTION METHOD FOR THE ANALYSIS OF PLUTONIUM IN SOIL: EVALUATION OF AN INTERLABORATORY COLLABORATIVE TEST AND COMPARISON WITH RESULTS OF A FUSION METHOD TEST
Citation:
Whittaker, E. AND G. Grothaus. ACID DISSOLUTION METHOD FOR THE ANALYSIS OF PLUTONIUM IN SOIL: EVALUATION OF AN INTERLABORATORY COLLABORATIVE TEST AND COMPARISON WITH RESULTS OF A FUSION METHOD TEST. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-79/081 (NTIS PB298149).
Description:
The data from an interlaboratory collaborative test are presented. A statistical analysis of the data is also presented. From that analysis, statements are made of the combined within-laboratory precision, the systematic error between laboratories, the total error between laboratories based on a single analysis, and the method bias. Soil samples used for the test contained plutonium in a highly refractory form, a very insoluble form, and therefore, difficult to measure the true concentration. Plutonium concentrations in those samples ranged from 0.1 to 10 dpm/g of soil. A comparison is made between the acid dissolution method and a fluoride-pyrosulfate fusion method which was tested in a similar study using the same test samples.