Summary
An overview of the activities of the Polish Institute of Nuclear Chemistry and Technology in the field of preparation and certification of reference materials for multielement trace analysis is presented. A general strategy has been worked out and is briefly described with more detailed emphasis on the problem of data evaluation. Two geological-environmental materials recently issued [i.e. an Apatite Concentrate (CTA-AC-1) and Fine Fly Ash (CTA-FFA-1)] which were certified for 25 and 40 elements, respectively, are described. The preparation and testing of a new CRM of biological origin Oriental Tobacco Leaves (CTA-OTL-1) is presented in detail, including study of the optimum methods for drying, checking homogeneity, radiation sterilization etc. Interlaboratory comparison, in which 61 laboratories participated, yielded results enabling recommended (certified) values for 29 elements and “information values” for further 11 elements to be established.
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Dybczyński, R., Polkowska-Motrenko, H., Samczyński, Z. et al. New Polish certified reference materials for multielement inorganic trace analysis. Fresenius J Anal Chem 345, 99–103 (1993). https://doi.org/10.1007/BF00322563
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DOI: https://doi.org/10.1007/BF00322563