Proficiency test exercise on the determination of natural levels of radionuclides in mushroom reference material |
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| Authors: | Shahida Waheed Asma Rahman Naila Siddique Shujaat Ahmad Matthias Rossbach |
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| Institution: | (1) Chemistry Division, Directorate of Science, Pakistan Institute of Nuclear Science and Technology (PINSTECH), P.O. Nilore, Islamabad, 45650, Pakistan;(2) Department of Nuclear Sciences and Applications, IAEA, P.O. Box 100, Vienna, Austria |
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| Abstract: | The results from a proficiency test exercise for the determination of natural levels of radionuclides in mushroom reference
material carried out by laboratories in six different countries are discussed. These laboratories submitted data on seven
radionuclides, namely 134Cs, 137Cs, 40K, 90Sr, 241Am, 226Ra, and 210Po. However, only the data received for three of these radionuclides could be statistically evaluated to obtain consensus
mean values and confidence intervals (at a significance level of 0.05). The contents of 134Cs, 137Cs and 40K were quantified as 4.4, 2,899 and 1,136 Bq/kg, respectively. |
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| Keywords: | Accuracy Mushrooms Precision Proficiency test Radionuclides Reference materials (RMs) |
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