高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (2): 210.

• 研究简报 • 上一篇    下一篇

一种新型液相色谱屏蔽键合相的色谱性能

景玉清, 龙远德, 黄天宝   

  1. 中国科学院成都有机化学研究所, 成都 610041
  • 收稿日期:2000-11-09 出版日期:2002-02-24 发布日期:2002-02-24
  • 通讯作者: 黄天宝(1943年出生),男,研究员,博士生导师,从事液相色谱研究.

Chromatographic Properties of a Novel Shielded Bonded Stationary Phase for Liquid Chromatography

JING Yu-Qing, LONG Yuan-De, HUANG Tian-Bao   

  1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
  • Received:2000-11-09 Online:2002-02-24 Published:2002-02-24

关键词: 高效液相色谱, 固定相, 硅醇基活性, 烷基酰胺, 亚胺

Abstract: A novel bonded stationary phase, octadecanamido imine bonded stationary phase(ODAI), for reversed-phase HPLC was prepared by bonding stearyl chloride to YWG-80 silica gel through 3-(2-aminoethylamino)propyltrimethoxysilane. Hydrophobicity, selectivity and silanophilic activity of ODAIphase were evaluated by using aromatic compounds as analytes and methanol-water as binary mobile phase. The organic components including acidic, basic, neutral aromatic analytes could be separated satisfactorily with an excellent selectivity and chromatographic peak shape. The asymmetry factors of basic aniline, o-toluidine and N,N-dimethylaniline were found to be 114, 106 and 101, respectively, using methanol-water(volume ratio is 55:45) as mobile phase. Aniline is eluted before phenol due to the internal masking interaction to suppress ion exchange activity of residual silanols.

Key words: High-performance liquid chromatography, Stationary phase, Silanophilic activity, Alkylamide, Imine

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