Longitudinal Miniaturization of Fiber-Packed Capillary Column in High Temperature Gas Chromatography |
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Authors: | M Ogawa Y Saito M Imaizumi H Wada K Jinno |
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Institution: | 1. School of Material Science, Toyohashi University of Technology, Toyohashi, 441-8580, Japan 2. Shinwa Chemical Industries, Ltd, 50 Kagekatsu-cho, Fushimi-ku, Kyoto, 612-8307, Japan
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Abstract: | Miniaturization of fiber-packed capillary column in gas chromatography was studied. Packed with a bundle of polymer-coated filaments into a short metal capillary, longitudinal miniaturization was demonstrated without any significant disadvantages for practical retentivity and sample loading capacity. With a metal capillary of 0.3 mm i.d., the typical column length could be reduced to be several centimeters. The retentivity for alkanes on the fiber-packed capillary column was compared to that obtained by a conventional open-tubular capillary column of the same length. Taking advantage of the heat-resistant property of both the fiber and the metal capillary, the separation of a polystyrene mixture on the polymer-coated fiber-packed short metal capillary column with a temperature-programmed run up to 400 °C was successfully carried out. As the typical application, rapid GC separations were also carried out with the short column of 0.05 m length. |
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