Preparation and characterization of six calixarene bonded stationary phases for high performance liquid chromatography
Preparation and characterization of six calixarene bonded stationary phases for high performance liquid chromatography
复制标题
高效液相色谱六种杯芳烃键合固定相的制备及表征
DOI：
10.1016/j.chroma.2007.09.036
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发表时间：
2007-11-02
影响因子：
4.1
通讯作者：
Zhang, Shusheng
中科院分区：
文献类型：
--
作者：
Ding, Chenghua;Qu, Kang;Zhang, Shusheng
制备了6种杯芳烃键合硅胶固定相，并用元素分析、红外光谱和热分析对其进行了表征。以多环芳烃、芳香族位置异构体和E-和z -乙基3-（4-乙酰苯基）丙烯酸酯异构体为探针，考察了它们的色谱性能。讨论了杯芳烃与分析物之间不同相互作用的分离机理。杯芳烃与被分析物之间的pi-pi相互作用、空间位阻和氢键相互作用等超分子相互作用影响了杯芳烃在柱上的色谱行为。值得注意的是，芳香异构体中极性基团（-OH， -NO2和-NH2）的存在提高了它们在杯芳烃相柱上的分离选择性。DFT-B3LYP/STO-3G*碱基的量子化学计算结果与相芳烃在杯状[4]芳烃柱上的保留行为一致。(C) 2007 Elsevier B.V.版权所有
Six calixarene bonded silica gel stationary phases were prepared and characterized by elemental analysis, infrared spectroscopy and thermal analysis. Their chromatographic performance was investigated by using PAHs, aromatic positional isomers and E- and Z-ethyl 3-(4-acetylphenyl) acrylate isomers as probes. Separation mechanism based on the different interactions between calixarenes and analytes were discussed. The chromatographic behaviors of those analytes on the calixarene columns were influenced by the supramolecular interaction including pi-pi interaction, space steric hindrance and hydrogen bonding interaction between calixarenes and analytes. Notably, the presence of polar groups (-OH, -NO2 and -NH2) in the aromatic isomers could improve their separation selectivity on calixarene phase columns. The results from quantum chemistry calculation using DFT-B3LYP/STO-3G* base group were consistent with the retention behaviors of PHAs on calix[4]arene column. (C) 2007 Elsevier B.V. All rights reserved.