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Solvent Extraction of Eu, Th, U, Np and Am with N,N’-Dimethyl-N,N’-dihexyl-3-oxapentanediamide and Its Analogous Compounds

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Abstract

The diamide type extradants (N,N’-dimethyl-N,N’-dihexyl-3-oxapentanediamide, DMDHOPDA, N,N’-dihexyl-3-thiopentanediamide, DHTPDA, and N,N’-dihexyl-3-oxapentanediamide, DHOPDA) were synthesized and tested for the extraction of the lanthanide and actinide elements. The elements, Eu3+, Am3+, Th4+, NpO2 and UO22+, when extracted by DMDHOPDA, showed no pH-dependence. The relationships between log[DMDHOPDA] and log D under different ionic strengths were investigated in order to clarify the extraction reactions. The separation factor for Eu3+/Am3+ is 8.64.

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Authors and Affiliations

  1. Department of Chemistry, Florida State University, Tallahassee, Florida, 32306-3006, USA

    Yuji Sasaki & Gregory R. Choppin

  2. Analytical Chemistry Laboratory, Department of Chemistry, Japan Atomic Energy Research Institute, Tokai, Ibaraki, 319-11, Japan

    Yuji Sasaki

Authors
  1. Yuji Sasaki
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  2. Gregory R. Choppin
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Sasaki, Y., Choppin, G.R. Solvent Extraction of Eu, Th, U, Np and Am with N,N’-Dimethyl-N,N’-dihexyl-3-oxapentanediamide and Its Analogous Compounds. ANAL. SCI. 12, 225–230 (1996). https://doi.org/10.2116/analsci.12.225

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  • DOI: https://doi.org/10.2116/analsci.12.225

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