Two New Polish Geological-Environmental Reference Materials: Apatite Concentrate (CTA-AC-1) and Fine Fly Ash (CTA-FFA-1) |
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| Authors: | Rajmund DYBCZYNASKI Halina POLKOWSKA-MOTRENKO Zbigniew SAMCZYNASKI Zygmunt SZOPA |
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| Institution: | Department of Analytical Chemistry, Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03–195 Warszawa, Poland |
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| Abstract: | World-wide intercomparison runs has made possible the certification of two new Polish geological-environmental reference materials for multi-element trace analysis: Apatite Concentrate (CTA-AC-1) and Fine Fly Ash (CTA-FFA-1). "Recommended values' are established for 25 (CTA-AC-1) and 40 (CTA-FFA-1) elements respectively. In addition, "information values' are assigned for 12 elements in CTA-AC-1 and 10 elements in CTA-FFA-1. Our method of data evaluation has been further improved and a modified version of criteria for assigning recommended and information values is proposed. |
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