Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (6): 1736.doi: 10.7503/cjcu20200867

• Analytical Chemistry • Previous Articles     Next Articles

Silicon-based Micro Gas Chromatographic Column Using Metal-Organic Framework Material ZIF-8 as Stationary Phase

ZHAO Yangyang1,2, LIU Qiyong2, CHEN Boxin2, ZHAO Bin2, ZHOU Haimei2, LI Xinxin2, ZHENG Dan1(), FENG Fei2()   

  1. 1.Shanghai Institute of Technology,School of Chemical and Environmental Engineering,Shanghai 201418,China
    2.State Key Laboratory of Transducer Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China
  • Received:2020-12-15 Online:2021-06-10 Published:2021-06-08
  • Contact: ZHENG Dan E-mail:zhengdan@sit.edu.cn;fengfei507@mail.sim.ac.cn

Abstract:

A semi-packed column embedded elliptical cylindrical posts was fabricated based on micro-electro-mechanical system(MEMS), and metal-organic framework(MOF) material ZIF-8 was synthesized by hydrothermal method and coated on the inner wall of the micro channel as the stationary phase. The performance test is performed under constant temperature of 30 ℃. The micro gas chromatography(GC) column using ZIF-8 material as the stationary phase can achieve the baseline separation of the methane, ethane and propane(C1—C3) in 75 s, with the resolution between the methane and ethane of up to 2.23, 99% higher than the micro GC column coated with mesoporous silica. The relative standard deviations of the peak areas of methane and ethane, and resolutions between methane and ethane were all less than 3%. The above results demonstrated the potential of the micro GC column using ZIF-8 as the stationary phase for use in portable analysis equipment for the real-time analysis of oil field gas.

Key words: Micro gas chromatography column, Metal-organic framework, Stationary phase, Micro-electro-mechanical system(MEMS), Separation of light hydrocarbons

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