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KMID : 1059519840280010047
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Journal of the Korean Chemical Society
1984 Volume.28 No. 1 p.47 ~ p.53
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The Elution Behavior of Rare Earth Elements in Diethylene Triamine N,N,N',N',N
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Jung Oh-Jin
Kim Ill-Doo
Lee Kye-Soo
Cha Ki-Won
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Abstract
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The separation of the rare earth elements with diethylene triamine N, N, N', N', N"-pentaacetic acid (DTPA) as eluent was carried out at different pH and concentrations by using anion exchange resin column. The rare earth elements were absorbed on the upper of the resin column and the best condition of the separation behavior was 0.025M of DTPA at pH 8.35. The elution order of the rare earths was in the order of the atomic number of the rare earth elements except samarium. The resolution of adjacent rare earth elements that have been separated with 0.025M-DTPA as eluent, was from 3.03 to 1.25 at pH 8.35. Resolution of Ce-Pr was maximum value in 3.03 and Eu-Gd was minimum in 1.25 at condition mentioned above, respectively. The resolution of rare earth elements separated with 0.025M DTPA eluent was very good at pH range of 8.0~8.6.
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