Determination of Host Phase of Lanthanum in Deep-sea REY-rich Mud by XAFS and µ-XRF Using High-energy Synchrotron Radiation

• Teruhiko Kashiwabara

  Institute for Research and Earth Evolution (IFREE)/Submarine Resource Research Project (SRRP), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

• Ryuichi Toda

  Department of Systems Innovation, The University of Tokyo

• Koichiro Fujinaga

  Department of Systems Innovation, The University of Tokyo

• Tetsuo Honma

  SPring-8, Japan Synchrotron Radiation Research Institute (JASRI)

• Yoshio Takahashi

  Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University

• Yasuhiro Kato

  Department of Systems Innovation, The University of Tokyo

Abstract

Host phase of lanthanum (La) in deep-sea rare-earth elements and yttrium (REY)-rich mud was directly determined by X-ray absorption fine structure (XAFS) and micro-focused X-ray fluorescence (µ-XRF) analyses. Excitation of K edge of La by high-energy X-ray allowed us to avoid severe interferences of coexisting elements such as vanadium and titanium in XAFS and XRF. It was revealed for the first time that La is accumulated in apatite in this type of sediments.

Journal

• Chemistry Letters

  Chemistry Letters 43 (2), 199-200, 2013-10-19

  Oxford University Press (OUP)

Keywords

• General Chemistry

Details

• CRID: 1360565169058874624
• NII Article ID: 130004867966
• DOI: 10.1246/cl.130853
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/43/2/199/55635919/cl.130853.pdf
• Data Source:
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  • CiNii Articles
  • KAKEN