CRCU

Chemical Research in Chinese Universities ›› 1992, Vol. 8 ›› Issue (3): 231-238.

• Articles • Previous Articles     Next Articles

Stereochemical Effects in Mass Spectrometry (Ⅶ)--Negative Ion Fast Atom Bombardment Mass Spectro-metry of Saccharides with Areneboronic Acids as Reagents

YANG Hou-jun1, CHEN Yao-zu2, ZHAO Fan-zhi3, LI Hai-quan3, ZHAI Jian-jun3, CHEN Nen-yu3   

  1. 1. Department of Chemistry, Tsinghua University, Beijing, 100084;
    2. Department of Chemistry, Lanzhou University, Lanzhou, 730000;
    3. Instrumental Analysis & Research Center, Lanzhou University, Lanzhou, 730000
  • Received:1991-07-06 Online:1992-08-24 Published:2011-09-09
  • Supported by:

    SupportedbytheNationalNaturalScienceFoundationofChina

PDF (PC)

Abstract: 1-Naphthylboronic acid and 2, 4-dimethylphenylboronic acid can react stereospecif-ically with hydroxy groups of saccharides on the probe tip of a fast atom bombardment mass spectrometer to form characteristic negatively-charged boronate ions. On the basis of the relative abundances of these characteristic ions, the epimers of mono- and di-saccharides may be distinguished. This approach was proved to be a simple and effective means for identifying sugars. The collisional activation moss spectra of these characteristic ions are also discussed.

Key words: Reaction mass spectrometry, Stereochemical effect, Saccharides