The preparation and homogeneity study of synthetic multi-element standards (SMELS) for QC/QA of k0-NAA |
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| Authors: | M Eguskiza P Robouch U Wätjen F De Corte |
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| Institution: | (1) European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Institute for Reference Materials and Measurements Retieseweg, B-2440 Geel, Belgium;(2) European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Technical Responslibe Neutron Activation Analysis, EC-European Commission, JRC-Joint Research Centre Retieseweg, B-2440 Geel, Belgium;(3) Joint Research Centre, Institute for Reference Materials and Measurements (IRMM) Retieseweg, European Commission, B-2440 Geel, Belgium;(4) Laboratory of Analytical Chemistry, Institute of Nuclear Science (INW), Gent University, Institut voor Nucleaire Wetenschappen, Proeftuinstraat 86, B-9000 Gent, Belgium |
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| Abstract: | Three new synthetic multi-element standards (SMELS) were developed for testing the performance of the k
0-standardization neutron activation analysis (k
0-NAA) method when implemented in a laboratory. SMELS consist of a phenol-formaldehyde polymer matrix spiked with different groups of elements according to the half-lives of the formed radionuclides. They are classified as Type I for short-, Type II for medium- and Type III for long-lived radionuclides. This article presents the preparation of SMELS including different aspects such as choice of the matrix and spiking elements, chemical compounds, target concentrations, purity of the matrix and spiking procedure and the homogeneity study for all the spiked elements in order to demonstrate the quality of the produced materials. |
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