TIAN Bowen, FENG Fei, ZHAO Bin, et al. Research on novel semi-packed micro gas chromatographic column chip[J]. 2019, (6): 5-8. DOI: 10.13873/J.1000-9787(2019)06-0005-04.
新型半填充微气相色谱柱芯片研究
摘要
基于微机电系统(MEMS)技术设计制造了新型半填充微气相色谱柱(μGCC)芯片
芯片的微沟道内设计有排列整齐的椭圆微柱阵列。与现有半填充μGCC相比
新型μGCC的微沟道具有更大的表面积和更均匀的流速场分布
对芯片分离度和柱效的提高起着至关重要的作用。设计的芯片成功分离了重烃类混合气体组分和苯系物
理论塔板数最高可达到9 246 plates/m。
Abstract
A novel semi-packed micro-fabricated gas chromatographic column( μGCC) chip is designed and fabricated based on micro-electro-mechanical systems( MEMS) technology
and this μGCC chip contains regular micro elliptic cylindrical posts array. Compared with existing semi-packed μGCC
the proposed μGCC has larger surface area and more even velocity field distribution
which play important roles in improving the separation resolution and column efficiency of the chip. Heavy hydrocarbon mixture and benzene series are separated
and the maximum number of theoretical plates are 9 246 plates/m.