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Uranium, thorium and rare earth elements in macrofungi: what are the genuine concentrations?
J. Borovička, J. Kubrová, J. Rohovec, Z. Randa, CE. Dunn,
Jazyk angličtina Země Nizozemsko
Typ dokumentu časopisecké články, práce podpořená grantem
NLK
ProQuest Central
od 1997-03-01 do Před 1 rokem
Medline Complete (EBSCOhost)
od 2011-02-01 do Před 1 rokem
Health & Medicine (ProQuest)
od 1997-03-01 do Před 1 rokem
- MeSH
- hmotnostní spektrometrie MeSH
- houby chemie klasifikace MeSH
- kovy vzácných zemin analýza MeSH
- neutronová aktivační analýza MeSH
- thorium analýza MeSH
- uran analýza MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Concentrations of uranium, thorium and rare earth elements (REE) in 36 species of ectomycorrhizal (26 samples) and saprobic (25 samples) macrofungi from unpolluted sites with differing bedrock geochemistry were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). Analytical results are supported by use of certified reference materials (BCR-670, BCR-667, NIST-1575a) and the reliability of the determination of uranium was verified by epithermal neutron activation analysis (ENAA). It appears that data recently published on these elements are erroneous, in part because of use of an inappropriate analytical method; and in part because of apparent contamination by soil particles resulting in elevated levels of thorium and REE. Macrofungi from unpolluted areas, in general, did not accumulate high levels of the investigated metals. Concentrations of uranium and thorium were generally below 30 and 125 μg kg(-1) (dry weight), respectively. Concentrations of REE in macrofungi did not exceed 360 μg kg(-1) (dry weight) and their distribution more or less followed the trend observed in post-Archean shales and loess.
Citace poskytuje Crossref.org
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