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The selectivity of crown ether polysiloxane stationary phases

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Summary

The phase recognition mechanism of nine groups of position isomers on four crown ether polysiloxanes, OV-1701 and PEG 20M has been investigsated by measuring various thermodynamic parameters. The high selectivity of crown ether polysiloxane phases is due to hydrogen bonding and the extent of fitting between the analytes and the crown ethe cavity. The effects on selectivity of cavity size, heteroatoms and substituent groups on the crown ether are discussed.

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Author notes

  1. J. S. Cheng

    Present address: Light Industry Department, Food & Fermentation Industry Science Research Institute, 100027, Beijing, China

Authors and Affiliations

  1. Department of Chemistry, Wuhan University, 430072, Wuhan Hubei Province, China

    C. Y. Wu, J. S. Cheng & Z. R. Zeng

Authors
  1. C. Y. Wu
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  2. J. S. Cheng
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  3. Z. R. Zeng
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Wu, C.Y., Cheng, J.S. & Zeng, Z.R. The selectivity of crown ether polysiloxane stationary phases. Chromatographia 35, 33–37 (1993). https://doi.org/10.1007/BF02278553

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  • DOI: https://doi.org/10.1007/BF02278553

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