Packing capilllary electrochromatography columns using vacuum--a preliminary study |
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Authors: | Qu Qishu Hu Xiaoya Zhu Xiashi Gao Shanmin Xu Qiang Wang Yubao Wang Xirong |
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Institution: | College of Chemistry and Chemical Engineering, Yangzhou University, Jiangsu 225002, China. qsqu@ustc.edu.cn |
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Abstract: | This paper introducesa novel method for packing Capillary Electrochromatography Columns (CEC). Using vacuum packing methodology, silica particles as small as 1 microm were successfully packed into the capillary columns with 75 microm inner diameter. The columns are verystable and show no noticeable loss in efficiency after 200 sample injections. The performance of these vacuum packed capillary columns was evaluated with a mixture of aromatic and non-aromatic compounds. A 24 cm long capillary column can produce peak efficiencies of around 45,000 plates for benzene. |
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Keywords: | Capillary electrochromatography Vacuum Packing |
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