Characterization and application of molecular binary mixed molecular micelles of sodium 10-undecenyl sulfate and sodium N-undecenyl leucinate as pseudostationary phases in micellar electrokinetic chromatography.
Characterization and application of molecular binary mixed molecular micelles of sodium 10-undecenyl sulfate and sodium N-undecenyl leucinate as pseudostationary phases in micellar electrokinetic chromatography.
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10-十一碳烯基硫酸钠和 N-十一碳烯基亮氨酸钠的分子二元混合分子胶束作为准固定相在胶束电动色谱中的表征和应用。
DOI：
10.1016/j.talanta.2012.06.008
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发表时间：
2012
期刊：
影响因子：
6.1
通讯作者：
Guzel,Mustafa
中科院分区：
文献类型：
--
作者：
Akbay,Cevdet;Ahmed,HamidH;Arslan,Hakan;Graham,Brittany;Guzel,Mustafa
制备了聚十一碳烯基硫酸钠（polySUS）、聚十一碳烯基亮氨酸钠（polySUL）及其组成不同的五种分子二元混合胶束。通过元素分析证实了这些分子胶束的纯度。他们的部分特定体积，聚集数，亚甲基选择性，极性，相比，流动性，和洗脱窗口值，使用各种分析技术进行了测定。这些分子胶束，然后评价作为拟固定相胶束电动色谱（MEKC）分离苯衍生物的化学性质范围广泛。元素分析结果表明，在聚合过程中，两种表面活性剂在二元混合物中的比例没有显着变化。聚SUS具有最低的偏比容，并随着SUL摩尔分数的增加而逐渐增加。发现聚SUL为测试溶质提供最疏水的环境。基于保留结果，发现分子胶束与分析物之间的相互作用的强度遵循以下顺序：NHB>HBA>HBD。这一顺序表明疏水作用对苯衍生物的保留起主要作用。
Poly (sodium 10-undecenyl sulfate) (poly SUS), poly (sodium 10-undecenyl leucinate) (poly SUL), and their five molecular binary mixed micelles with varied SUS:SUL composition were prepared. The purity of these molecular micelles was confirmed by elemental analysis. Their partial specific volume, aggregation number, methylene selectivity, polarity, phase ratio, mobility, and elution window values were determined using a variety of analytical techniques. These molecular micelles were then evaluated as pseudostationary phases in micellar electrokinetic chromatography (MEKC) for separation of benzene derivatives with a wide range of chemical properties. Elemental analysis results reveal that the ratio of the two surfactants in the binary mixture does not change significantly during the polymerization process. Poly SUS was found to have the lowest partial specific volume and it increases gradually with an increase of SUL mole fraction. Poly SUL was found to provide the most hydrophobic environment for test solutes. Based on the retention results, the strength of interaction between the molecular micelles and the analytes was found to follow the following order: NHB>HBA>HBD. This order indicates that the hydrophobic interaction plays a major role in retention of benzene derivatives.