Application de l’Analuyse par Radioactivation Neutronique et du Calcul Electronique au Dosage non Destructif de Traces de Chlore dans les Silices-alumines |
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Authors: | P. Bussiere A. Laurent E. Junod |
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Affiliation: | 1. Institut de Recherches sur la Catalyse, CNRS, Villeurbanne, Rh?ne 2. Groupe Analyse par Activation, CEA, CENG, SAR, Grenoble, France
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Abstract: | A method applicable for serial determination of traces of chlorine in SiO2−Al2O3 catalysts by neutron activation is described. The results are evaluated by means of a computer. The38Cl activity is subtracted from the activity of the interfering components (56Mn,24Na) and this enables a direct γ-spectrometric determination. In praxis ten samples should be irradiated simultaneously and for this reason 3 standards are irradiated together with the samples to correct for the fluxus gradient. The reproducibility of the method is better than 2 per cent for 10–300 mg samples with a Cl content of 10 ppm. |
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