Institute of Geology, v.v.i., Academy of Sciences of the Czech Republic, Rozvojová 269, CZ-165 00, Prague 6, Czech Republic.
Biometals. 2011 Oct;24(5):837-45. doi: 10.1007/s10534-011-9435-4. Epub 2011 Mar 9.
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.
采用电感耦合等离子体质谱法（ICP-MS）分析了 36 种外生菌根（26 个样本）和腐生菌（25 个样本）真菌在无污染地点的浓度，这些地点的基岩地球化学性质不同。铀、钍和稀土元素（REE）的分析结果得到了认证参考物质（BCR-670、BCR-667、NIST-1575a）的支持，铀的测定可靠性通过中能中子活化分析（ENAA）得到了验证。最近发表的这些元素的数据似乎是错误的，部分原因是使用了不适当的分析方法；部分原因是由于土壤颗粒的明显污染，导致钍和 REE 水平升高。一般来说，无污染地区的大型真菌不会积累高水平的研究金属。铀和钍的浓度一般分别低于 30 和 125μgkg-1（干重）。真菌中 REE 的浓度不超过 360μgkg-1（干重），其分布或多或少遵循后太古宙页岩和黄土中观察到的趋势。
