Poly(1-allylimidazole)-grafted silica, a new specific stationary phase for reversed-phase and anion-exchange liquid chromatography

被引：45

作者：

Sun, Min ^{[1
,2
]}

Qiu, Hongdeng ^{[1
]}

Wang, Licheng ^{[1
]}

Liu, Xia ^{[1
]}

Jiang, Shengxiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Nat Med Gansu Prov, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

JOURNAL OF CHROMATOGRAPHY A | 2009年 / 1216卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Poly(1-allylimidazole)-grafted silica; Stationary phase; Reversed-phase chromatography; Anion-exchange chromatography; EMBEDDED UREA GROUPS; BONDED-PHASES; PERFORMANCE; SELECTIVITY; RETENTION; BEHAVIOR;

D O I：

10.1016/j.chroma.2009.02.089

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A new specific stationary phase based on poly(1-allylimidazole)-grafted silica has been synthesized and characterized, by infrared spectra, elemental analysis, thermogravimetric analysis and X-ray photoelectron spectroscopy. The results of test showed that poly(1-allylimidazole) can effectively mask the residual silanol groups and reduce the adverse effect of residual silanol. Using this stationary phase, phenol compounds, aniline compounds, and polycyclic aromatic hydrocarbons were successfully separated with symmetric peak shapes in the reversed-phase chromatography. Inorganic anions (IO3-, BrO3-, Br-, NO3-, I-, SCN-) were also separated completely in the anion-exchange chromatography using sodium chloride solution as the mobile phase. The effects of pH and the concentration of eluent on the separation of inorganic anions were studied. The separation mechanism appears to involve the mixed interactions of hydrogen bonding, hydrophobic, pi-pi, electrostatic, and anion-exchange interactions. (C) 2009 Elsevier B.V. All rights reserved

引用

页码：3904 / 3909

页数：6

共 29 条

[1] Characterization and high performance liquid chromatographic evaluation of a new amide-functionalized reversed phase column [J].