Determination of Arsenic, Antimony, Molybdenum, Thorium and Tungsten in Silicates by Thermal Neutron Activation and Inorganic ion Exchange
- 1 January 1978
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 11 (5) , 429-435
- https://doi.org/10.1080/00032717808067883
Abstract
Ion exchange on Al2O3 columns has been used to quantitatively measure As, Sb, Mo, Th and W in silicate rocks. This procedure requires hour long thermal neutron irradiations, rapid ion exchange after the rocks are brought into solution by peroxide fusion, and short γ-ray counts on a Ge(Li) detector. Detection limits of 10 ppb have been achieved for As, Sb, Th and W. The best detection limit observed for Mo is 3 ppm.Keywords
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