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Determination of the Rare Earth Elements by Neutron Activation Analysis,in Fluorites of the Argentine Republic

Non-destructive neutron activation analysis has been applied to the determination of 11 — 14 rare earth elements in samples of fluorites collected from 7 different deposits of Argentina. The adequate selection of conditions of irradiation, decay and measurement for the determination are described. The results obtained for analysis of 22 samples are presented and their interpretation are discussed.