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题名: Magnesium oxide microspheres as a packing material for the separation of basic compounds in normal-phase liquid chromatography
作者: Zhang, Zhiping;  Zheng, Yajun;  Zhang, Jixiu;  Chen, JiPing;  Liang, Xinmiao
关键词: magnesium oxide ;  microspheres ;  normal-phase liquid chromatography ;  basic compounds
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2007-09-21
DOI: 10.1016/j.chroma.2007.07.072
卷: 1165, 期:1-2, 页:116-121
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: Uniform monodisperse magnesium oxide microspheres with a high surface area have been prepared by a facile seed-induced precipitation. By characterizing these particles with scanning electron microscopy and N-2 physisorption techniques, the results demonstrate that these magnesium 9 a total pore volume of 0.76 mL g(-1) and oxide microspheres have an average particle diameter of 9.5 mu m, a specific surface area of 211.7 m(2) g(-1) an average pore diameter of 143 angstrom. The chromatographic properties of these microspheres have been investigated in normal-phase mode for the separation of various basic compounds including aniline, quinoline, and pyridine derivatives. In contrast to conventional silica, the magnesium oxide particles exhibit unique selectivity and retention property for the separation of the tested basic compounds, and these microspheres are promising as an alternative new packing material for high-performance liquid chromatography. (c) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: ORGANIC-SOLVENT MODIFIER ;  REVERSED-PHASE ;  SURFACE-PROPERTIES ;  STATIONARY PHASES ;  CAPILLARY ELECTROCHROMATOGRAPHY ;  OXYGEN VACANCIES ;  PERFORMANCE ;  MGO ;  ZIRCONIA ;  COLUMNS
语种: 英语
WOS记录号: WOS:000249626700016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140694
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Liaoning Normal Univ, Dept Chem, Inst Chem Functionalized Mat, Dalian 116029, Peoples R China

Recommended Citation:
Zhang, Zhiping,Zheng, Yajun,Zhang, Jixiu,et al. Magnesium oxide microspheres as a packing material for the separation of basic compounds in normal-phase liquid chromatography[J]. JOURNAL OF CHROMATOGRAPHY A,2007,1165(1-2):116-121.
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