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KMID : 1059519950390020081
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Journal of the Korean Chemical Society
1995 Volume.39 No. 2 p.81 ~ p.96
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Determination of Rare Earth Elements in USGS Geological Materials by ICP/AES
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Kim Jung-Suk
Choi Kwang-Soon
Park Yong-Joon
Jee Kwang-Yong
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Abstract
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Inductively coupled plasma atomic emission spectrometry was used for the determination of all 14 rare earth elements (REE) in geological materials. Samples were decomposed by using acid digestion followed by alkaline fusion. Group separation of the REE was achieved by solvent extraction with TOPO (trioctylphosphine oxide) and back extraction into HCl. The results for standard rock sample, AGV-1, showed a good agreement with those obtained by US Geological Survey as well as reported values in other articles
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