Study on the separation mechanisms in capillary electrochromatography with bare silica-packed column

	Study on the separation mechanisms in capillary electrochromatography with bare silica-packed column
	Ye, ML; Zou, HF; Liu, Z; Zhang, LH; Ni, JY; Zhang, YK
刊名	chinese journal of analytical chemistry
	1999-09-01
卷号	27 期号:9 页码:1007-1012
关键词	capillary electrochromatography bare silica separation mechanism dynamically modified
英文摘要	the separation mechanisms in capillary electromatography (cec) of bare silica - packed column was investigated under aqueous - organic mobile phases. the separations of five typical solutes, including apolar compound (benzene), polar compounds (formamide and dimethyl formamide) and basic compounds (pyridine and quinoline), showed that reverse phase retention, normal phase retention, ion-exchange and electrophoresis mechanisms were involved. the effect of the concentration of organic modifier, the concentration of buffer and the ph value on separation were investigated. due to the hydrophilicity of bare silica, the silica-packed column exhibits the following merit, i. e., the mobile phase composition can change in rather large range of organic modifier content, buffer concentration and ph value. this means that the bubble problem that are usually met in ods-packed column can be minimized with the silica-packed column. additionally, we presented a novel model of cec, termed as dynamically modified silica column cec. five alkyl substitued benzenes were baseline separated with a mobile phase containing cetyltrimethylammonium bromide.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, analytical
研究领域[WOS]	chemistry
关键词[WOS]	reversed-phase ; basic compounds ; gel
收录类别	SCI
语种	英语
WOS记录号	WOS:000083010500005
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/138573]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Acad Sinica, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116011, Peoples R China
推荐引用方式 GB/T 7714	Ye, ML,Zou, HF,Liu, Z,et al. Study on the separation mechanisms in capillary electrochromatography with bare silica-packed column[J]. chinese journal of analytical chemistry,1999,27(9):1007-1012.
APA	Ye, ML,Zou, HF,Liu, Z,Zhang, LH,Ni, JY,&Zhang, YK.(1999).Study on the separation mechanisms in capillary electrochromatography with bare silica-packed column.chinese journal of analytical chemistry,27(9),1007-1012.
MLA	Ye, ML,et al."Study on the separation mechanisms in capillary electrochromatography with bare silica-packed column".chinese journal of analytical chemistry 27.9(1999):1007-1012.