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Modifications of poly(methyl-3-propylthiol)siloxane to give stationary phases for open tubular supercritical fluid chromatography

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Summary

Poly(methyl-3-propylthiol)siloxane has been evaluated for use as stationary phase in open tubular columns for gas and supercritical fluid chromatography. Immobilization of the stationary phase was achieved by crosslinking with 2,4,6-trichloro-1,3,5-triazine. The poly(methyl-3-propylthiol)siloxane stationary phase film was in situ oxidized to the disulphide and sulphonic acid forms and both have been evaluated for use in supercritical fluid chromatography. Good selectivity towards polar polycyclic aromatic compounds has been shown. All the modified forms of the stationary phase were loaded with silver ions and were evaluated with regard to ligand exchange chromatography using supercritical fluid carbon dioxide as a mobile phase. The utility of the stationary phase, having sulphonic acid groups loaded with silver ions, has been demonstrated by separation of fatty acid methyl esters according to their unsaturation.

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Author notes

  1. K. Janák

    Present address: Institute of Analytical Chemistry, Czechoslovak Academy of Sciences, 611 42, Brno, Czechoslovakia

Authors and Affiliations

  1. Department of Analytical Chemistry, University of Stockholm, Arrhenius Laboratory, S-106 91, Stockholm, Sweden

    K. Janák, M. Demirbüker, I. Hägglund & L. G. Blomberg

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  1. K. Janák
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  2. M. Demirbüker
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  3. I. Hägglund
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  4. L. G. Blomberg
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Dedicated to Professor Leslie S. Ettre on the occasion of his 70th birthday.

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Janák, K., Demirbüker, M., Hägglund, I. et al. Modifications of poly(methyl-3-propylthiol)siloxane to give stationary phases for open tubular supercritical fluid chromatography. Chromatographia 34, 335–341 (1992). https://doi.org/10.1007/BF02268365

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  • DOI: https://doi.org/10.1007/BF02268365

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