The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

  
       
         
    STUDIA CHEMIA - Issue no. 4 / 2007  
         
  Article:   TLC SEPARATION OF TH(IV) AND LANTHANIDES(III) ON VARIOUS STATIONARY PHASES USING HDEHDTP AS COMPLEXING AGENT.

Authors:  MARIA-LOREDANA SORAN, MARIA CURTUI, DIANA GHERMAN. 		 
       
         
  Abstract:   The separation of thorium(IV) and lanthanides(III) (Ln(III)) using different stationary phases: silica gel, silica gel – zirconium(IV) silicate mixture, silica gel – titanium(IV) silicate mixture, and silica gel impregnated with NH4NO3 2.5M has been investigated. The solvent mixtures o,m,p-xylene – methyl-ethyl-ketone (MEK) - N,N-dimethylformamide (DMF) (16+ 2+1, v/v) and methyl-ethyl-ketone – tetrahydrofuran (THF) (6.8+3.2, v/v) containing di(2-ethylhexyl)dithiophosphoric acid (HDEHDTP) 0.04 M as complexing agent were used as mobile phases. The results obtained show that the separation of Th(IV) from Ln(III) and Ln(III) from each other is achieved using silica gel impregnated with NH4NO3 2.5 M and MEK – THF (6.8+3.2, v/v) – HDEHDTP 0.04 M as mobile phase.  
         
     
         
         
      Back to previous page