中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Monolithic columns with mixed modes of reversed-phase and anion-exchange stationary phase for capillary electrochromatography
作者: Fu, HJ;  Xie, CH;  Xiao, H;  Dong, J;  Hu, JW;  Zou, HF
关键词: monolithic columns ;  mixed-mode separations ;  stationary phases ;  electrochromatography ;  electrochromatography ;  anilines ;  alkylbenzenes ;  polynuclear aromatic hydrocarbons ;  caffeine ;  barbitals ;  benzoic acids ;  terephthalic acid
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2004-07-30
DOI: 10.1016/j.chroma.2004.04.076
卷: 1044, 期:1-2, 页:237-244
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
英文摘要: A capillary electrochromatography (CEC) monolithic column with mixed modes of reversed-phase and anion-exchange stationary phases was prepared by in situ polymerization of 2-(methacryloxy)ethyltrimethylammonium methyl sulfate (MEAMS) and ethylene dimethacrylate (EDMA) in a binary porogenic solvent consisting 1-propanol and 1,4-butanediol. The ammonium groups on the surface of the stationary phase generate an electroosmotic flow (EOF) from cathode to anode, and serve as a strong anion-exchange stationary phase at the same time. The EOF of the stationary phase can be determined by the amount of MEAMS monomer in reaction mixtures during the polymerization. The monolithic stationary phases exhibited reversed-phase chromatographic behavior toward neutral solutes. For charged solutes, hydrophobic as well as electrostatic interaction/repulsion with the monoliths was observed. Separations of aromatic compounds and basic compounds on the prepared column were performed under the mode of CEC. Peak tailing of basic compounds was avoided and the efficient separation of aromatic acids was achieved using neutral mobile phase due to the same direction of EOF and electrophorestic mobility of negatively charged solutes. (C) 2004 Elsevier B.V. All rights reserved.
关键词[WOS]: RIGID POLYMER MONOLITHS ;  LIQUID-CHROMATOGRAPHY ;  SEPARATION MEDIA ;  PEPTIDES ;  PROTEINS
语种: 英语
WOS记录号: WOS:000222984300019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139579
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Dalian 116011, Peoples R China

Recommended Citation:
Fu, HJ,Xie, CH,Xiao, H,et al. Monolithic columns with mixed modes of reversed-phase and anion-exchange stationary phase for capillary electrochromatography[J]. JOURNAL OF CHROMATOGRAPHY A,2004,1044(1-2):237-244.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Fu, HJ]'s Articles
 [Xie, CH]'s Articles
 [Xiao, H]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Fu, HJ]‘s Articles
 [Xie, CH]‘s Articles
 [Xiao, H]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace