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题名: Characterization of the surface properties of Mg/Al oxides by the solvation parameter model
作者: Zhang, ZP;  Zhang, SG;  Chen, JP;  Liu, ZM;  Liang, XM
通讯作者: 陈吉平
关键词: Mg/Al oxide ;  solvation parameter ;  normal-phase ;  reversed-phase
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2006-05-19
DOI: 10.1016/j.chroma.2006.02.069
卷: 1115, 期:1-2, 页:58-63
收录类别: SCI
文章类型: Article
部门归属: 1,8,18
项目归属: 103,803,1803
产权排名: 1;1
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: The oxides of different Mg/Al ratios (Mg/Al = 0, 0.1, 5, 10 and infinity) were prepared, and the characterization of these oxides was attempted by estimating characteristic interaction parameters based on the solvation parameter model. The magnitudes of the regression coefficients varied with the increase of Mg/Al ratio. For the oxide of Mg/Al = 0.1 and Al2O3, the contribution of these characteristic interactions for solutes' retention was similar to that of the common silica, and the dipolarity/polarizability (pi*), the solute hydrogen bond donating (all) and accepting (beta(H)(2)) abilities played an important role. Yet, the retention behavior at a higher Mg/Al ratio (Mg/Al = 5, 10 and MgO) drastically changes, and V-i/100 (the intrinsic molar volume), pi*, alpha(H)(2) and beta(H)(2) all favored the solutes retention. By comparison of the regression coefficients on various normal-phase (NP) and reversed-phase (RP) columns, a new model was developed to correlate the solute retention factors on Mg/Al = 5, 10 and MgO columns with the data of NP and PP columns. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: PERFORMANCE LIQUID-CHROMATOGRAPHY ;  ENERGY RELATIONSHIPS ;  STATIONARY PHASES ;  BIOCHEMICAL PROCESSES ;  OXYGEN VACANCIES ;  MAGNESIUM-OXIDE ;  MOBILE-PHASE ;  MIXED OXIDES ;  M-CRESOL ;  RETENTION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000237481400005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97715
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

Recommended Citation:
Zhang, ZP,Zhang, SG,Chen, JP,et al. Characterization of the surface properties of Mg/Al oxides by the solvation parameter model[J]. JOURNAL OF CHROMATOGRAPHY A,2006,1115(1-2):58-63.
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