Abstract
A lichen research material, prepared from the species Evernia prunastri, was produced by a co-operation between the International Atomic Energy Agency (IAEA) and the Instituto de Ciencias e Engenharia Nucleares (INETI) in Sacavém, Portugal. An international intercomparison study was carried out, with 42 independent sets of results being reported from participants in 26 countries. The statistical evaluation of the collected data resulted in recommended values for 17 elements and information values for 15 elements. The criteria for assigning the values are provided, including the use of information obtained through the parallel analysis of a second material, IAEA-359, Cabbage.
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Stone, S.F., Freitas, M.C., Parr, R.M. et al. Elemental characterization of a candidate lichen research material — IAEA-336. Fresenius J Anal Chem 352, 227–231 (1995). https://doi.org/10.1007/BF00322332
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DOI: https://doi.org/10.1007/BF00322332