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

被引：44

作者：

Kashiwabara, Teruhiko ^{[1
]}

Toda, Ryuichi ^{[2
]}

Fujinaga, Koichiro ^{[2
]}

Honma, Tetsuo ^{[3
]}

Takahashi, Yoshio ^{[4
]}

Kato, Yasuhiro ^{[2
]}

机构：

[1] Japan Agcy Marine Earth Sci & Technol JAMSTEC, SRRP, Inst Res & Earth Evolut IFREE, Yokosuka, Kanagawa 2370061, Japan

[2] Univ Tokyo, Dept Syst Innovat, Bunkyo Ku, Tokyo 1138656, Japan

[3] Japan Synchrotron Radiat Res Inst JASRI, SPring 8, Sayo, Hyogo 6795198, Japan

[4] Hiroshima Univ, Grad Sch Sci, Dept Earth & Planetary Syst Sci, Hiroshima 7398526, Japan

来源：

CHEMISTRY LETTERS | 2014年 / 43卷 / 02期

关键词：

RARE-EARTH-ELEMENTS; EAST PACIFIC RISE; FERROMANGANESE OXIDES; OCEAN; SEDIMENTS; SEAWATER; MOLYBDENUM;

D O I：

10.1246/cl.130853

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 (mu-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.

引用

页码：199 / 200

页数：2

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