Determination of the contents and distribution characteristics of REE in natural plants by NAA

  • Y. Q. Wang
  • J. X. Sun
  • H. M. Chen
  • F. Q. Guo
Letter to the Editor

Abstract

The concentration of 8 REEs (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in 17 species of plants and their host soil, which were collected from a rare earth ore area located in the south of China, have been determined by INAA. The chondritic normalized REE patterns for different parts of plants (e.g., leaf stem and root) and their host soils were studied. The results showed that the concentration levels of REE for most plants in the sampling area were elevated. Particularly, the leaves of the fern (Dicranopteris dichotoma) contain extremely high concentration of the total REE (675–3358 μg/g) Generally, these REE distribution patterns in every part of plants were very similar and reflected the characteristics of their host soils. However, the chondritic normalized REE patterns in some plants relative to the host soil revealed obvious fractionation, such as the depletion of the heavy REE (for fernCitrus reticulata andBrassia campestris), the heavy REE enrichment (forCamellia sinensis, Camellia oleifera andZiziphus) and the Ce positive anomaly (forGardenia jasminoides).

Keywords

Fractionation Rare Earth INAA Natural Plant Sampling Area 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1997

Authors and Affiliations

  • Y. Q. Wang
    • 1
  • J. X. Sun
    • 1
  • H. M. Chen
    • 1
  • F. Q. Guo
    • 1
  1. 1.Institute of High Energy Physics, Academia Sinica, Laboratory of Nuclear Analysis TechniquesAcademia SinicaBeijingP. R. China

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