• 文献标题:   A novel octadecylsilane functionalized graphene oxide/silica composite stationary phase for high performance liquid chromatography
  • 文献类型:   Article
  • 作  者:   LIANG XJ, WANG S, LIU SJ, LIU X, JIANG S
  • 作者关键词:   graphene oxide, hydrophobic interaction, pp interaction, octadecylsilane functionalized graphene oxide, silica stationary phase
  • 出版物名称:   JOURNAL OF SEPARATION SCIENCE
  • ISSN:   1615-9306 EI 1615-9314
  • 通讯作者地址:   Chinese Acad Sci
  • 被引频次:   28
  • DOI:   10.1002/jssc.201200258
  • 出版年:   2012

▎ 摘  要

An octadecylsilane functionalized graphene oxide/silica stationary phase was fabricated by assembling graphene oxide onto the silica particles through an amide bond and subsequent immobilization of octadecylsilane. The chromatographic properties of the stationary phase were investigated by reversed-phase chromatography with alkylbenzenes, polycyclic aromatic hydrocarbons, amines, and phenolic compounds as the analytes. All the compounds achieved good separation on the column. The comparison between a C18 commercial column and the new stationary phase indicated that the existence of p-electron system of graphene oxide allows pp interaction between analyte and octadecylsilane functionalized graphene oxide/silica stationary phase except for hydrophobic interaction, while only hydrophobic interaction presented between analyte and C18 commercial column. This suggests that some analytes can be better separated on the octadecylsilane functionalized graphene oxide/silica column.