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Octyl-functionalized hybrid silica monolithic column for reversed-phase capillary electrochromatography
Yan, LJ; Zhang, QH; Feng, YQ; Zhang, WB; Li, T; Zhang, LH; Zhang, YK
关键词Monolithic Stationary Phases Reversed-phase Capillary Electrochromatography Organic-inorganic Hybrid Materials Sol-gel Chemistry
刊名JOURNAL OF CHROMATOGRAPHY A
2006-07-14
DOI10.1016/j.chroma.2006.04.053
1121期:1页:92-98
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 ; POLYMER MONOLITHS ; ONE-STEP ; SEPARATION
英文摘要Hybrid silica monolithic stationary phase functionalized with octyl groups was synthesized by a two-step acid/base-catalyzed hydrolysis/co-condensation of tetraethoxysilane (TEOS) and n-octyltriethoxysilane (C-8-TEOS). The influences of deter-mining factors in the sol-gel process such as the monomer ratio and water content on the monolith formation were systematically investigated. An increase in the TEOS/C-8-TEOS ratio in the polymerization mixture shifted the pore size distribution towards smaller pore diameter with larger pore volume. The optimal TEOS/C8-TEOS volume ratio was found to be 90/50, under which condition the median pore diameter of the monolith was around 1.0 mu m with pore volume of 3.25 cm(3)/g. The chromatographic characteristics of the monolithic column prepared with the optimized fabrication condition were studied. Some aromatic compounds including alkylbenzenes, polycyclic aromatic hydrocarbons (PAHs) and phenols were successfully separated on the octyl-functionalized silica monolithic column with high column efficiency up to 180,000 plates/m. (c) 2006 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000238776200012
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被引频次:74[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/321008/140055
专题中国科学院大连化学物理研究所
作者单位1.Natl Res Ctr Certified Reference Mat, Natl Inst Metrol, Beijing 100013, Peoples R China
2.Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116023, Peoples R China
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Yan, LJ,Zhang, QH,Feng, YQ,et al. Octyl-functionalized hybrid silica monolithic column for reversed-phase capillary electrochromatography[J]. JOURNAL OF CHROMATOGRAPHY A,2006,1121(1):92-98.
APA Yan, LJ.,Zhang, QH.,Feng, YQ.,Zhang, WB.,Li, T.,...&Zhang, YK.(2006).Octyl-functionalized hybrid silica monolithic column for reversed-phase capillary electrochromatography.JOURNAL OF CHROMATOGRAPHY A,1121(1),92-98.
MLA Yan, LJ,et al."Octyl-functionalized hybrid silica monolithic column for reversed-phase capillary electrochromatography".JOURNAL OF CHROMATOGRAPHY A 1121.1(2006):92-98.
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