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1997 (1)
1Author    Takao Oi, Hirotsugu Takeuchi, Akiko Sakurai, Yoshifumi Taguchi, Morikazu HosoeRequires cookie*
 Title    Boron Isotope Effect in Liquid Chromatography with Boron-specific Resins as Packing Material  
 Abstract    Boron isotope separation by liquid chromatography using boron specific resins with N-methyl glucamine as the functional group was performed. The single-stage separation factor, S, is generally dependent on the resin in the sequence S (free base form resin) > S (F~ form resin) >5 (CP form resin) ^S (Br ~ form resin) for given experimental conditions. This sequence is the same as that of the pH value expected in the resin phase and reasonably understandable by assuming in addition to the predominant four-coordinate species a three-coordinate boron species in the resin phase whose relative abundance increases with decreasing pH. Supporting evidence for three-coordinate species was obtained by 1: B NMR measurements of boric acid-glycerol and boric acid-l,3-propane-diol solutions. 
  Reference    Z. Naturforsch. 52a, 821—827 (1997); received May 23 1997 
  Published    1997 
  Keywords    Boron isotopes, isotope separation, boron specific resin, liquid chromatography, "BNMR 
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 TEI-XML for    default:Reihe_A/52/ZNA-1997-52a-0821.pdf 
 Identifier    ZNA-1997-52a-0821 
 Volume    52