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题名: Preparation and characterization of biphenylene bridged hybrid monolithic column for capillary electrochromatography
作者: Zhang Qing-He1;  Yan Li-Juan2;  Zhang Wei-Bing3;  Zhang Yu-Kui3
关键词: monolithic column ;  capillary electrochromatography ;  biphenylene-bridged hybrid mesoporous materials
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2008-05-01
卷: 36, 期:5, 页:572-576
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: Biphenylene-Bridged Hybrid monolithic column was synthesized for the capillary electrochromatography by a two-step acid/base-catalyzed hydrolysis/co-condensation of phenyltriethoxysilane (PTES) and 1,4-bis(triethoxysilyl) benzene ( BTEB) using hydrochloric acid and dodecylamine as catalysts, respectively. The influences of determining factors in the sol-gel process such as the monomer ratio, pH and the water content on the monolith formation were systematically investigated. The structure and pore size distribution of the monolithic column were characterized by scanning electron microscopy, IR spectroscopy and mercury porosimetry, respectively. The median pore diameter of the monolith was around 3. 4 in with pore volume of 3. 5 cm(3)/g. Chromatographic characteristics of the monolithic column prepared with the optimized fabrication condition were studied. Alkylbenzenes, polycyclic aromatic hydrocarbons (PAHs), anilines and positional isomers of phenols were successfully separated on the functionalized silica monolithic column. Run-to-run, and column-to-column reproducibilities of the monolithic columns were investigated in terms of t(0) and the retention time and capacity factor of six alkylbenzenes. It was observed that the RSDs were less than 0.6% and 0.3% (n = 8) for run-to-run, and the RSDs were less than 7. 2% and 5. 6% (n = 3) for column-to-column, respectively. These results indicated that the reproducibility of the monolithic columns was quite satisfactory.
关键词[WOS]: ORGANIC GROUPS ;  FRAMEWORKS ;  SILICA
语种: 英语
WOS记录号: WOS:000257902600002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140927
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.Natl Inst Metrol PR China, Div Metrol Chem, Beijing 100013, Peoples R China
2.Xiamen Entry Exit Inspect & Quarantine Bur, Xiamen 361012, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116023, Peoples R China

Recommended Citation:
Zhang Qing-He,Yan Li-Juan,Zhang Wei-Bing,et al. Preparation and characterization of biphenylene bridged hybrid monolithic column for capillary electrochromatography[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2008,36(5):572-576.
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