title: The properties of capillary columns with silica organic-inorganic MCM-41 type porous layer stationary phase.
abstract: In this work, we report the method of capillary columns preparation for gas-solid chromatography with a porous layer of MCM-41 type silica sorbent. The porous layer was synthesized by the sol-gel method inside the column. Scanning electron microscopy (SEM) measurements were performed to obtain information about the porous layer. The loading capacity of the prepared columns was investigated. An adsorbent selectivity was changed by using different relative contents of organic-inorganic precursors: vinyltriethoxysilane (VTEOS) and tetraethoxysilane (TEOS). Properties of the columns prepared are discussed. Separating examples of C1-C4hydrocarbons and some other compounds are presented.
authors.affiliation: Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk, 630090, Russia; Novosibirsk State University, Pirogova Str., 2, Novosibirsk, 630090, Russia. Electronic address: patrush@catalysis.ru.
authors.forename: Yuri V
authors.initials: YV
authors.lastname: Patrushev
authors.affiliation: Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk, 630090, Russia.
authors.forename: Vladimir N
authors.initials: VN
authors.lastname: Sidelnikov
keywords: Capillary column; Gas–solid chromatography; Hybrid organic–inorganic sorbent; Sol–gel silica