Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (2): 211.

• Articles • Previous Articles     Next Articles

Preparation, Characteristics and Separation Mechanism of Thio Crown Ether Polysiloxane Stationary Phases

WU Cai-Ying, HU Zhen-Bo, CHENG Jing-Song, LU Xue-Ran, ZENG Zao-Rui   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072
  • Received:1993-04-27 Revised:1993-09-27 Online:1994-02-24 Published:1994-02-24

Abstract: A new kind of thio crown ether stationary pases, ω-undecylene thio-15-crown-5,was synthesized.This stationary phase indicates good thermal stability, medium polarity and excellent selectivity for n-alcohols, ester and aromatic compounds,their chromatographic characterization and separation mechanism have been investigated by measuring various thermodynamic parameters.The separations of di-chloro benzene, nitro toluene and di-nitro toluene position isomers on the column were made as examples.

Key words: Crown ether polysiloxane, Stationary phase, Gas chromatography

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