| Autor: | Yoshiko Tanaka, K. Nishimura, Mitsuhiko Akaboshi, Jitsuya Takada, Noriko Fujii |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Blechnaceae
biology Rare-earth element Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Sampling (statistics) biology.organism_classification Pollution Analytical Chemistry Nuclear Energy and Engineering Botany Environmental science Radiology Nuclear Medicine and imaging Fern Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 251:149-152 |
| ISSN: | 0236-5731 |
| DOI: | 10.1023/a:1015071000723 |
| Popis: | We have investigated the concentrations of REEs in fern leaves collected indifferently to the fern species from 9 sampling sites in Japan using INAA. The results indicated a large variation in the values obtained between fern leaves. In the present investigation we applied the same analytical method on the samples (Blechnaceae, a kind of fern, mature and developing leaves were collected from the same plant) restrictively gathered from the University Forests in Ashiu, Kyoto University. It was demonstrated that the variations in the REE concentrations decreased by one to two order of magnitude, and that the REE contents in developing leaves were also one to two orders of magnitude lower than those in mature leaves. It can be considered that fern accumulates REEs with their growth stages. |
| Databáze: | OpenAIRE |
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