Determination of silicon in metals by thermal neutron activation |
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Authors: | J C Rouchaud M Fedoroff G Revel |
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Institution: | (1) Centre d'Etudes de Chimie Métallurgique, 15, rue Georges Urbain, 94 400 Vitry, (France) |
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Abstract: | A new method of silicon determination in molybdenum by the30Si(n, γ)31Si was developed. All the problems occurring during this analysis: standardization, quantitative dissolution, silicon sorption
on vessels, reproducibility of β-counting...were carefully studied and new answers were brought to them. The chemical speratation
of silicon was performed with a column of anion exchange resin in HCl-HF-H2O2 solution and a column of alumina at pH 9. Accuracy and reproducibility were controlled on standard samples prepared by fusion
of inactive molybdenum and radioactive silicon in a plasma furnace. |
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