Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk 630090, Russia; Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Russia.
Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk 630090, Russia; Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Russia.
J Chromatogr A. 2023 Sep 27;1707:464270. doi: 10.1016/j.chroma.2023.464270. Epub 2023 Aug 2.
The study demonstrates the possibility of using ionic liquids (IL) as a stationary liquid phase (SLP) for gas chromatographic (GC) multicapillary columns (MCC). Three types of IL of three classes were employed as SLP: Imidazolium, Pyridinium and Quinolinium. Dependences of the MCCs efficiency on the carrier gas flow rate were obtained. Highest efficiency was achieved on the column with 1,2-Dimethyl-3-propylimidazolium bis(trifluoromethylsulfonyl)imide (DiMPrIm). For this column, dependence of the efficiency on the sample volume has been investigated. Also the loading capacity of the MCC with DiMPrIm was determined. Separation of fatty acid esters and phenols served as an example to demonstrate that using ionic liquids as SLP for МСС make it possible to combine fast separations with high selectivity.
该研究证明了离子液体（IL）作为气相色谱（GC）多毛细管柱（MCC）固定液（SLP）的可能性。使用了三类三种类型的 IL 作为 SLP：咪唑鎓、吡啶鎓和喹啉鎓。获得了 MCCs 效率对载气流速的依赖性。在 1,2-二甲基-3-丙基咪唑𬭩双（三氟甲基磺酰基）亚胺（DiMPrIm）柱上获得了最高的效率。对于该柱，研究了效率对样品体积的依赖性。还确定了带有 DiMPrIm 的 MCC 的载量。脂肪酸酯和酚类的分离用作示例，以证明将离子液体用作 MCC 的 SLP 可实现快速分离和高选择性的结合。
