分析化学2025，Vol.53Issue(10)：1607-1614,8.DOI:10.19756/j.issn.0253-3820.251178
基于阳极氧化技术制备大表面积微型气相色谱柱及其应用
A Micro Gas Chromatographic Column with Large Surface Area Based on Anodization
摘要
Abstract
A micro gas chromatographic column with mesoporous surface micro column array prepared by anodization method was proposed.A porous support layer with a characteristic pore size of about 30 nm inside the chromatographic column was prepared in situ using anodization method,and a uniform alumina stationary phase was deposited on the mesoporous support layer using atom layer deposition(ALD)technique.The existence of a mesoporous support layer increased surface area of the chromatographic column,thereby increasing the total amount of stationary phase loading and enhancing column capacity,which facilitated chromatographic separation.The test results showed that the porous support layer significantly reduced the longitudinal molecular diffusion and mass transfer resistance of the micro gas chromatographic column,and significantly increased the number of theoretical plates(n-nonane increased by 290.2%).Furthermore,column efficiency of the chromatographic column was less affected by flow rate,which was conducive to rapid separation of heavy hydrocarbon mixtures.关键词
阳极氧化/微型气相色谱柱/介孔硅支撑层/氧化铝固定相Key words
Anodization/Micro gas chromatographic column/Mesoporous silicon support layer/Alumina stationary phase引用本文复制引用
马少杰,李文博,祝雨晨,陈泊鑫,李之睿,赵斌,冯飞..基于阳极氧化技术制备大表面积微型气相色谱柱及其应用[J].分析化学,2025,53(10):1607-1614,8.基金项目
国家重点研发计划项目(No.2021YFC2800301)、中国科学院战略性先导科技专项(C类)项目(NO.XDC0250103)和上海东方英才计划项目资助. Supported by the National Key R&D Program of China(No.2021YFC2800301),the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDC0250103)and the Shanghai Oriental Talent Program. （No.2021YFC2800301）
