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首页> 外文期刊>Journal of chromatography, A: Including electrophoresis and other separation methods >Description of retention characteristics of calixarene-bonded stationary phases in dependence of the methanol content in the mobile phase
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Description of retention characteristics of calixarene-bonded stationary phases in dependence of the methanol content in the mobile phase

机译：杯芳烃键合固定相的保留特性的描述，取决于流动相中的甲醇含量

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摘要

Calixarene-bonded stationary phases in HPLC are known to support additional interactions compared to conventional alkyl-bonded phases (pi-pi interactions, complex-building interactions). Thus it cannot be presumed that the same mechanisms of retention apply and that retention can be predicted in similar ways. Here 31 solutes of highly various molecular structures have been analysed at different mobile phase compositions (0-98% (v/v) methanol) in order to characterise the chromatographic behaviour Of the novel stationary phases and to test the applicability of established models predicting retention factors. The influence of a change of the methanol content is discussed for non-polar, polar and ionic solutes and differences of their behaviour on the differing column types are shown. Additionally estimates about underlying retention mechanisms are given.
机译：与传统的烷基键合相相比，已知HPLC中杯芳烃键合的固定相可支持其他相互作用（π-π相互作用，复杂结构相互作用）。因此，不能假定适用相同的保留机制，并且可以以类似方式预测保留。在这里，在不同的流动相组成（0-98％（v / v）甲醇）下分析了31种高度分子结构的溶质，以表征新型固定相的色谱行为，并测试了预测保留率的模型的适用性因素。讨论了甲醇含量变化对非极性，极性和离子型溶质的影响，并显示了它们在不同色谱柱类型上的行为差异。另外给出了有关潜在保留机制的估计。

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