A fluorous biphasic solvent extraction system for lanthanides with a fluorophilic ß-diketone type extractant

Etsuko Nakamura, Yuki Hiruta, Takafumi Watanabe, Naoko Iwasawa, Daniel Citterio, Koji Suzuki

Research output: Contribution to journalArticle

6 Citations (Scopus)


The properties of a fluorous solvent extraction system for trivalent lanthanide metal ions are reported. A fluorinated extractant, 4,4,5,5,6,6,7,7,8,8,9,9,9-tridecafluoro-1-(2-thienyl)-1,3-nonanedione, and HFE-7200 (C4F9OC2H5) as the extraction solvent were chosen. With this fluorous extractant/solvent combination, higher extraction ratios and separation factors compared to a conventional organic solvent system (thenoyltrifluoroacetone in CHCl3) were achieved for 5 heavy lanthanide ions (Lu, Yb, Tm, Er and Ho). On the other hand, light lanthanide ions (Nd, Pr, Ce and La) are hardly extracted, therefore enabling the mutual separation of light lanthanides from middle or heavy lanthanide ions. 2015

Original languageEnglish
Pages (from-to)923-928
Number of pages6
JournalAnalytical Sciences
Issue number9
Publication statusPublished - 2015



  • Fluorous solvent
  • Lanthanide
  • Mutual separation
  • Solvent extraction

ASJC Scopus subject areas

  • Analytical Chemistry

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