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Capillary electrochromatography with a silica column with a dynamically modified cationic surfactant
Ye, ML; Zou, HF; Liu, Z; Ni, JY; Zhang, YK
关键词Electrochromatography Dynamically Modified Silica Capillary Electrochromatography Anilines Stationary Phases Benzenes Lc Peptides
刊名JOURNAL OF CHROMATOGRAPHY A
1999-09-03
855期:1页:137-145
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]Biochemical Research Methods ; Chemistry, Analytical
研究领域[WOS]Biochemistry & Molecular Biology ; Chemistry
关键词[WOS]PERFORMANCE LIQUID-CHROMATOGRAPHY ; STATIONARY PHASES ; SEPARATION ; BEHAVIOR ; ELECTROPHORESIS ; BASES
英文摘要A novel mode of capillary electrochromatography (CEC), called dynamically modified silica-capillary electrochromatography, is described in this paper. The column packed with bare silica was dynamically modified with long chain quaternary ammonium salt, cetyltrimethylammonium bromide (CTAB), which was added into the mobile phase. CTAB ions were adsorbed onto the surface of bare silica, and the resulted hydrophobic layer on the silica gel was used as the stationary phase; Using the dynamically modified silica column, neutral solutes were separated by CEC. The highest number of theoretical plates obtained was about 71 500/m and the relative standard deviations for t(0) and capacity factor of toluene were 4.7% and 4.9% for 20 consecutive runs, respectively. The separation mechanism of neutral solutes and the influence of mobile phase composition on the separation was investigated. The separation of nitrogen-containing solutes was carried out with this mode and the peak tailing of basic solute was effectively eliminated because the adsorption of basic solute on silica was blocked by the preferred adsorption of CTAB. (C) 1999 Elsevier Science B.V. All rights reserved.
语种英语
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WOS记录号WOS:000082604000008
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被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/85601
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Lab Chromatog, Dalian 116011, Peoples R China
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Ye, ML,Zou, HF,Liu, Z,et al. Capillary electrochromatography with a silica column with a dynamically modified cationic surfactant[J]. JOURNAL OF CHROMATOGRAPHY A,1999,855(1):137-145.
APA Ye, ML,Zou, HF,Liu, Z,Ni, JY,&Zhang, YK.(1999).Capillary electrochromatography with a silica column with a dynamically modified cationic surfactant.JOURNAL OF CHROMATOGRAPHY A,855(1),137-145.
MLA Ye, ML,et al."Capillary electrochromatography with a silica column with a dynamically modified cationic surfactant".JOURNAL OF CHROMATOGRAPHY A 855.1(1999):137-145.
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