Chinese Journal of Chromatography ›› 2018, Vol. 36 ›› Issue (9): 911-916.DOI: 10.3724/SP.J.1123.2018.03037

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High-aspect-ratio gas chromatography column based on micro-electro-mechanical system technology

LUO Fan1,2, FENG Fei1, ZHAO Bin1, TIAN Bowen1,2, YANG Xuelei1,2, ZHOU Haimei1, LI Xinxin1   

  1. 1. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-03-28 Online:2018-09-08 Published:2014-08-05
  • Supported by:

    National Key R&D Program of China (No. 2018YFA0208504); National Natural Science Foundation of China (Nos. 91323304, 61172151, 60876081); Science and Technology Commission of Shanghai Municipality (No. 14DZ1105102), National High Technology Research and Development Program of China (863 Program) (No. 2009AA04Z317).

Abstract:

Miniaturization of gas chromatography (GC) columns is one of the key problems associated with microminiaturization of a chromatograph. In this study, a GC column with high-aspect-ratio microchannel based on micro-electro-mechanical system (MEMS) technology has been designed and manufactured. Simulation and analysis by the COMSOL software revealed that the GC column has even velocity field distribution, which is crucial for improving the separation efficiency of the column. The results show that heavy hydrocarbons (C6-C10) and compounds of benzene series can be successfully separated. The number of theoretical plate is 14028 plates/m, and the resolution of C7-C8 is 10.82. Due to its advantages of smaller volume, lower energy consumption, and better separation performance, the GC column can be applied in micro gas chromatography.

Key words: gas chromatography (GC) column, high-aspect-ratio microchannel, micro-electro-mechanical systems

CLC Number: