title: A micro gas chromatography with separation capability enhanced by polydimethylsiloxane stationary phase functionalized by carbon nanotubes and graphene.
abstract: Polydimethylsiloxane (PDMS) stationary phases functionalized with multi-walled carbon nanotubes (MWCNTs) and graphene, respectively, for the columns in micro gas chromatography are presented in this paper. To exploit the merits of MWCNTs and graphene in terms of their high specific surface area, low surface energy and chemical inertness, experimental conditions for separation (heating rate and final temperature of temperature programming, flow rate of carrier gas and the volume of samples injection) are investigated, and separations of both polar and nonpolar compound mixtures under these conditions are performed. Compared with PDMS-only coated stationary phases, the functionalization of the phases with carbon nano-materials improves the performance of columns in separation, repeatability, stability and revolution significantly.
authors.affiliation: College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Yubo
authors.initials: Y
authors.lastname: Li
authors.affiliation: College of Optical Science & Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Runzhou
authors.initials: R
authors.lastname: Zhang
authors.affiliation: College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.affiliation: College of Optical Science & Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Youhao
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Yonghuan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Lingfeng
authors.initials: L
authors.lastname: Li
authors.affiliation: College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Weijun
authors.initials: W
authors.lastname: Zhao
authors.affiliation: College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China. Electronic address: xw224@zju.edu.cn.
authors.forename: Xiaozhi
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Jikui
authors.initials: J
authors.lastname: Luo
keywords: Graphene; Micro gas chromatography; Multi-walled carbon nanotubes (MWCNTs); Open tubular column; PDMS stationary phase; Semi-packed column