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Chemically modified teflon capillary columns for gas chromatography II. Solid surface effects in direct coated columns

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Summary

The preparation of teflon capillary columns employing direct coating of the stationary phase to the chemically modified teflon surface and the role of the chemically modified teflon in the separation mechanism are described. Two types of contributions from the modified teflon have been observed: nonspecific adsorption of the carbon surface and specific interactions of polar groups in the carbon skeleton. The use of polar liquid phases can eliminate adsorption due to the presence of polar groups in the modified teflon.

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Authors and Affiliations

  1. Department of Chemistry, Wright State University, 45435, Dayton, Ohio, U.S.A.

    J. E. DiNunzio, D. D. Bombick & G. Doebler

Authors
  1. J. E. DiNunzio
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  2. D. D. Bombick
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  3. G. Doebler
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DiNunzio, J.E., Bombick, D.D. & Doebler, G. Chemically modified teflon capillary columns for gas chromatography II. Solid surface effects in direct coated columns. Chromatographia 15, 641–644 (1982). https://doi.org/10.1007/BF02279491

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  • DOI: https://doi.org/10.1007/BF02279491

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