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Citation: YANG Xue-Lei, ZHAO Bin, FENG Fei, ZHOU Hai-Mei, YANG Heng, LI Xin-Xin. High Performance Micro Gas Chromatography Column Using Mesoporous Silica as Stationary Phase[J]. Chinese Journal of Analytical Chemistry, ;2019, 47(6): 832-837. doi: 10.19756/j.issn.0253-3820.191005 shu

High Performance Micro Gas Chromatography Column Using Mesoporous Silica as Stationary Phase

YANG Xue-Lei ^1,2, ,
ZHAO Bin ¹ ,
FENG Fei ¹ ,
ZHOU Hai-Mei ¹ ,
YANG Heng ¹ ,
LI Xin-Xin ¹

1.
State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;
2.
Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2 January 2019

Fund Project: This work was supported by the National Key R&D Program of China (No. 2018YFA0208504), the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA22020504), the Key Research Program of Frontier Sciences of Chinese Academy of Sciences (No. QYZDJ-SSW-JSC001), the Science and Technology Commission of Shanghai Municipality (No. 18DZ1100601), and the Science and Technology Service Network Initiative of Chinese Academy of Sciences (No. KFJ-STS-QYZD-090).

A micro-fabricated semi-packed gas chromatography (μGC) column embedded micro-elliptical pillars was fabricated based on micro-electro-mechanical system (MEMS) technique. The mesoporous silica film (MS) with 2 nm pore size and large specific surface area was coated on the inner surface of the μGC column as stationary phase. Under the same injection volume and the temperature-programmed conditions, the baseline separation of alkanes (C5-C10) was realized by the μGC column used MS as stationary phase, and the resolution of pentane and solvent (impurity) could be as large as 3.6. Compared with the GC column used polydimethylsiloxane (PDMS) as stationary phase, the number of theoretical plates of octane had a 46% increase, which could be up to 14458 plates. Meanwhile, the peak area of nonane increased by 349.8%.
- Mesoporous silica,
- Micro semi-packed column,
- Micro-electro-mechanical system
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