Characterization of mixed micellar pseudostationary phases in electrokinetic chromatography using linear solvation energy relationships.

Characterization of mixed micellar pseudostationary phases in electrokinetic chromatography using linear solvation energy relationships.
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使用线性溶剂化能关系表征电动色谱中的混合胶束假固定相。

DOI:
10.1016/s0021-9673(97)01157-6
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发表时间:
1998
期刊:
Journal of chromatography. A
影响因子:
--
通讯作者:
Hadjmohammadi,M
Hadjmohammadi,M
中科院分区:
--
文献类型:
--
作者:
Khaledi,MG;Bumgarner,JG;Hadjmohammadi,M

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用线性溶剂化能关系(LSER)研究了混合胶束体系对胶束电动色谱保留和选择性的影响。研究的系统包括混合胆汁盐[脱氧胆酸钠(SDC)和胆酸钠(SC)]和混合十二烷基硫酸钠(SDS)-胆汁盐系统(例如,SDS-SC和SDS-SDC)。在单独和混合胶束体系中的保留行为主要取决于溶质的大小和氢键受体强度。通过对单个胶束体系和混合胶束体系的LSER系数的比较研究,得出结论:氢键相互作用对电动色谱中这些假固定相的选择性有显著影响。混合胶束的相互作用性质不同于组成单独的胶束,然而,即使在等摩尔组成下,混合物中的胆汁盐胶束的整体特征也更接近其中之一。
The influence of mixed micellar systems on retention and selectivity in micellar electrokinetic chromatography is examined using linear solvation energy relationships (LSER). Systems that were investigated include mixed bile salts [sodium deoxycholate (SDC) and sodium cholate (SC)] and mixed sodium dodecyl sulfate (SDS)–bile salt systems (e.g., SDS–SC and SDS–SDC). The retention behavior in individual and mixed micellar systems is primarily determined by size and hydrogen bond acceptor strengths of solutes. Through a comparative study of the LSER coefficients in the individual and mixed micellar systems, it was concluded that hydrogen bonding interactions have a significant effect on selectivity of these pseudostationary phases in electrokinetic chromatography. The interactive properties of the mixed micelles are different from the constituent individual micelles, however, the overall characteristics are closer to one of the bile salt micelles in the mixture even at the equimolar compositions.
胶束电动色谱中的化学选择性:溶质-胶束相互作用的表征,用于表面活性剂的分类。
DOI: 10.1021/ac00099a004
发表时间: 1995
影响因子: 7.4
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可电离化合物胶束电动色谱的计算机辅助建模、预测和多因素优化。
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使用混合氟碳烃阴离子表面活性剂对小肽进行胶束电动色谱的选择性控制。
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影响因子: --
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DOI: 10.1021/ac00291a049
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DOI: 10.1016/0021-9673(94)01003-w
发表时间: 1995
期刊: Journal of chromatography. A
影响因子: --
作者:
Yang,S;Khaledi,MG
通讯作者: Khaledi,MG