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Citation: XU Yan, LU Jun, LI De-Qian. Distribution of Rare Earth Elements in Polyethylene glycol-Ammonium Sulphate Aqueous Biphasic System[J]. Chinese Journal of Applied Chemistry, ;2000, 17(1): 22-25. shu

Distribution of Rare Earth Elements in Polyethylene glycol-Ammonium Sulphate Aqueous Biphasic System

XU Yan ¹ ,
LU Jun ² ,
LI De-Qian ²

1.
1. Department of Chemical Engineering, Hebei Institute of Technology, Tangshan;
2.
2. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 17 September 1999
Available Online: 15 November 1999
Fund Project: 国家重点基础研究发展规划项目(G1998061302) (G1998061302)国家自然科学基金(29771028,29801004)资助课题 (29771028,29801004)

The ditribution behavior of La, Yb, Eu and asenazo Ⅲ in the polyethylene glycol-ammonium sulphate aqueous biphasic system have been investigated. It is showed that the distribution ratios of rare earth elements in the presence of arsenazo Ⅲ increased with the increasing of PEG molecular weight, asenazo Ⅲ concentration and their complex constants. The interaction of arsenazo Ⅲ and rare earth elements with the polyethylene glycol has been discussed.
- aqueous biphasic system,
- polyethylene glycol,
- arsenazo Ⅲ,
- rare earth element,
- distribution
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