Abstract
The applicability of thermal neutron activation analysis for the determination of gold and other elements in two Egyptian gold ores has been studied. Ten samples collected from El Sukari and Atud in the Eastern Desert-Egypt have been analyzed. The samples were properly prepared together with their standards and simultaneously irradiated in a neutron flux of the order 7×10 11 n/cm 2 s using the TRIGA research reactor at Mainz. Short-term (1 and 5 m) irradiation in the pneumatic system was also used for detection of the elements with shorter half-lives. After activation, the samples were subjected to γ-ray spectrometry using a high-purity germanium detection system and computerized multichannel analyzer. The results show that the concentration of gold is 42.4% in El-Sukari, and 25.7% in Atud. In addition, we determine the concentrations of 31 elements beside gold.
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