Chromatographia

, Volume 46, Issue 5–6, pp 291–294 | Cite as

Synergistic effects in mixed gas chromatographic stationary phases containing hepatkis(2.3.6-tri-O-pentyl)-β-cyclodextrin and AgNO3 or TINO3 in the separation of xylene isomers

  • L. -M. Yuan
  • R. -N. Fu
  • S. -H. Gui
  • X. -T. Xie
  • R. -J. Dai
  • X. -X. Chen
  • Q. -H. Xu
Originals

Summary

The gas chromatographic separation of xylene isomers using special mixed stationary phases consisting of heptakis(2.3.6-tri-O-pentyl)-β-CD-AgNO3, heptakis (2.3.6-tri-O-pentyl)-β-CD-TINO3 or bentone-34-AgNO3 is investigated. The first two have positive synergistic effects for the separation of m, and p-xylene isomers, but negative synergistic effects for the m, and oisomers. The separation effects depend on temperature, mixing ratio and how mixing is accomplished.

Key Words

Gas chromatography Synergistic effect Mixed stationary phases Heptakis(2.3.6-tri-O-pentyl)-β-CD Bentone-34 AgNO3 TINO3 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1997

Authors and Affiliations

  • L. -M. Yuan
    • 1
  • R. -N. Fu
    • 1
  • S. -H. Gui
    • 2
  • X. -T. Xie
    • 2
  • R. -J. Dai
    • 1
  • X. -X. Chen
    • 2
  • Q. -H. Xu
    • 3
  1. 1.Department of Chemical EngineeringBeijing Institute of TechnologyBeijingP.R. China
  2. 2.Department of ChemistryYunnan Normal UniversityKunmingP.R. China
  3. 3.Department of ChemistryYunnan UniversityKunmingP.R. China

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