Abstract
High-temperature gas chromatographic separation of several synthetic polymer mixtures with Dexsil-coated fiber-packed columns was studied. A bundle of heat-resistant filaments, Zylon, was longitudinally packed into a short metal capillary, followed by the conventional coating process with Dexsil 300 material. Prior to the packing process the metal capillary was deactivated by the formation of a silica layer. The typical size of the resulting column was 0.3-mm i.d., 0.5-mm o.d., 1-m length, and packed with about 170 filaments of the Dexsil-coated Zylon. The column temperature could be elevated up to 450°C owing to the good thermal stability of the fiber, Dexsil coating, and metal capillary; furthermore, this allowed the separation of low-volatile compounds to be studied.
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Acknowledgements
Part of this research was financially supported by a Grant-in-Aid for Young Scientists ((B) No. 15750066) from The Ministry of Education, Culture, Sports, Science and Technology (MEXT). The authors would like to thank Toyobo Co., Ltd. and Toyo-Petrolite Co., Ltd. for the donation of Zylon fiber and Polywax samples, respectively, and also thank Mr. Takafumi Hayakawa of Hayashi Kasei (Toyota Office) for his valuable assistance during this work.
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Saito, Y., Ogawa, M., Imaizumi, M. et al. High-temperature separation with polymer-coated fiber in packed capillary gas chromatography. Anal Bioanal Chem 382, 825–829 (2005). https://doi.org/10.1007/s00216-004-2967-5
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DOI: https://doi.org/10.1007/s00216-004-2967-5