High-temperature separation with polymer-coated fiber in packed capillary gas chromatography
High-temperature separation with polymer-coated fiber in packed capillary gas chromatography
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DOI：
10.1007/s00216-004-2967-5
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发表时间：
2005-01
影响因子：
4.3
通讯作者：
Yoshihiro Saito;M. Ogawa;M. Imaizumi;K. Ban;Akira Abe;T. Takeichi;H. Wada;K. Jinno
中科院分区：
文献类型：
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作者：
Yoshihiro Saito;M. Ogawa;M. Imaizumi;K. Ban;Akira Abe;T. Takeichi;H. Wada;K. Jinno
本文研究了用Dexsil涂层纤维填充柱分离几种合成高分子混合物的高温气相色谱。将一束耐热长丝Zylon纵向填充到短金属毛细管中，然后用Dexsil 300材料进行常规涂覆工艺。在填充过程之前，通过形成二氧化硅层使金属毛细管失活。所得柱的典型尺寸为0.3 mm内径，外径0.5 mm，1米长，并装有约170根Dexsil涂层Zylon长丝。由于纤维、Dexsil涂层和金属毛细管的良好热稳定性，柱温可升高至450°C;此外，这允许研究低挥发性化合物的分离。
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.