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Preparation and characterization of biphenylene bridged hybrid monolithic column for capillary electrochromatography
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
2008-05-01
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
关键词[WOS]ORGANIC GROUPS ; FRAMEWORKS ; SILICA
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.
语种英语
WOS记录号WOS:000257902600002
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140927
专题中国科学院大连化学物理研究所
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
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GB/T 7714
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.
APA Zhang Qing-He,Yan Li-Juan,Zhang Wei-Bing,&Zhang Yu-Kui.(2008).Preparation and characterization of biphenylene bridged hybrid monolithic column for capillary electrochromatography.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,36(5),572-576.
MLA Zhang Qing-He,et al."Preparation and characterization of biphenylene bridged hybrid monolithic column for capillary electrochromatography".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 36.5(2008):572-576.
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