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Journal of Radioanalytical and Nuclear Chemistry
E. Romero Guzmán
M. Solache Ríos
J. Iturbe García
, and
E. Ordoñez Regil


It is well known that phosphate rock contains a small amount of uranium. During the production of phosphate fertilizers, most uranium present is found in the phosphate fraction. Uranium was determined in the 70–200 ppm range in the phosphate rock and the final products by nuclear and classical methods.

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