Determination of aluminium, silicon and magnesium in geological matrices by delayed neutron activation analysis based on k0 instrumental neutron activation analysis

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2013-12

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Applied Radiation and Isotopes

Abstract

In this work, concentrations of silicon, aluminium and magnesium in geological matrices were determined by Neutron Activation Analysis based on k0-IAEA software. The optimum activation and delay times were found to be 5min and 15-20min respectively for the determination of Si via 29Si (n,p) 29Al reaction. The adopted irradiation scheme did not work for the determination of magnesium. Each sample was irradiated under a thermal neutron flux density of 5.0×1011ncm-2s-1. Cadmium covered activation indicated that a permanent epithermal irradiation site for research reactors would be very useful for routine determination of silicon in environmental samples. © 2013 Elsevier Ltd.

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Aluminium, Geological matrix, INAA, K0-IAEA software, Magnesium, Silicon

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