Acta Scientiarum Naturalium Universitatis Pekinensis

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Determination of Rare Earth Elements in Chloroplasts by Neutron Activation Analysis

ZHANG Zhiyong,WANG Yuqi,LI Fuliang,CHAI Zhifang   

  1. Institute of High Energy Physics, Laboratory of Nuclear Analysis Techniques, Chinese Academy of Sciences, P.O.Box 2732, Beijing, 100080, China
  • Received:2000-07-13 Online:2001-03-20 Published:2001-03-20



  1. 中国科学院高能物理研究所,中科院核分析技术开放实验室,北京,100080

Abstract: The contents of 8 rare earth elements(REEs)in chloroplasts of Brassia napus were determined by instrumental neutron activation analysis. The results indicated that there were trace amounts of REEs in the chloroplasts, which corresponded to 1 atom of REEs per 2000 chlorophyll molecules. This content was lower than the microelements already known essential for the process of photosynthesis such as Fe, Mn and Cu.

Key words: rare earth elements, chloroplasts, neutron activation analysis

摘要: 用中子活化分析测定了油菜叶绿体中的稀土元素含量。结果表明叶绿体中含有微量稀土,其含量相当于每个稀土原子对应约2000个叶绿素分子,低于Fe, Mn, Cu等必需元素。

关键词: 稀土元素, 叶绿体, 中子活化分析

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