Multicapillary columns with ionic liquids as stationary liquid phase

Yuri V Patrushev; Mikhail V Shashkov; Vladimir N Sidelnikov

doi:10.1016/j.chroma.2023.464270

Multicapillary columns with ionic liquids as stationary liquid phase

J Chromatogr A. 2023 Sep 27:1707:464270. doi: 10.1016/j.chroma.2023.464270. Epub 2023 Aug 2.

Authors

Yuri V Patrushev¹, Mikhail V Shashkov², Vladimir N Sidelnikov³

Affiliations

¹ Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk 630090, Russia; Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Russia. Electronic address: patrush@catalysis.ru.
² Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk 630090, Russia; Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Russia.
³ Boreskov Institute of Catalysis, pr. Lavrentieva 5, Novosibirsk 630090, Russia.

PMID: 37573728
DOI: 10.1016/j.chroma.2023.464270

Abstract

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.

Keywords: Fast separations; Ionic liquids; Multicapillary column; Stationary phases.

MeSH terms

Chromatography, Gas / methods
Ionic Liquids* / chemistry

Substances

Ionic Liquids