高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (6): 1736.doi: 10.7503/cjcu20200867

• 分析化学 • 上一篇    下一篇

以金属有机骨架材料ZIF-8为固定相的硅基微气相色谱柱

赵阳洋1,2, 刘启勇2, 陈泊鑫2, 赵斌2, 周海梅2, 李昕欣2, 郑丹1(), 冯飞2()   

  1. 1.上海应用技术大学化学与环境工程学院, 上海 201418
    2.中国科学院上海微系统与信息技术研究所传感技术国家重点实验室, 上海 200050
  • 收稿日期:2020-12-15 出版日期:2021-06-10 发布日期:2021-06-08
  • 通讯作者: 郑丹 E-mail:zhengdan@sit.edu.cn;fengfei507@mail.sim.ac.cn
  • 作者简介:冯 飞, 男, 博士, 研究员, 主要从事微色谱系统方面的研究. E-mail: fengfei507@mail.sim.ac.cn
  • 基金资助:
    国家重点研发计划项目(2018YFA0208504);中国科学院战略性先导科技专项(A类)(XDA22020504);中国科学院科技服务网络计划(KFJ-STS-QYZD-090)

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

摘要:

基于微机电技术制备了一种含有椭圆微柱阵列的半填充柱; 采用水热法合成了一种金属有机骨架材料ZIF-8, 将其涂敷在微色谱柱的微沟道内壁上作为固定相. 在30 ℃恒温下对芯片的分离性能进行了测试, 结果表明, 以ZIF-8为固定相的微色谱柱可以在75 s内实现甲烷、 乙烷和丙烷(C1~C3)的基线分离, 其中甲烷-乙烷的分离度达到了2.23, 与以介孔硅为固定相的微色谱柱相比提高了99%; 甲烷、 乙烷的峰面积以及甲烷-乙烷分离度重复性的相对标准偏差均小于3%. 以上结果表明, 以ZIF-8为固定相的微色谱柱在针对油田气实时分离的便携式微色谱系统中具有广泛的应用前景.

关键词: 微色谱柱, 金属有机骨架材料, 固定相, 微机电系统, 轻烃的分离

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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