A New Stationary Phase for Capillary Gas Chromatography: Calix[4]resorcinarene Functionalized with Imidazolium Cationic Units
| Autor: | Tao Sun, Junjie Hu, Qian Zhang, Ziwei Ma, Zhiqiang Cai, Xiaomin Shuai, Xinyu Zhao, Shaoqiang Hu, Yujie Chen |
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| Rok vydání: | 2021 |
| Předmět: |
Analyte
Chromatography 010405 organic chemistry Chemistry 010401 analytical chemistry Organic Chemistry Clinical Biochemistry Cationic polymerization Xylidine Resorcinarene 01 natural sciences Biochemistry 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound Ionic liquid Calixarene Toluidine Selectivity |
| Zdroj: | Chromatographia. 84:325-333 |
| ISSN: | 1612-1112 0009-5893 |
| DOI: | 10.1007/s10337-021-04018-x |
| Popis: | In this work, a novel calix[4]resorcinarene-based ionic liquid (C4RA-2IL) was synthesized, structurally characterized, and statically coated on capillary column as stationary phase for capillary gas chromatography (GC). The column efficiency of the C4RA-2IL column is 3345 plates m−1, which are determined by n-dodecane at 120 °C. Based on its McReynolds constants, the C4RA-2IL column showed moderate polarity. Particularly, the C4RA-2IL column show high separation performance for a wide range of analytes and some difficult separation of meta/para-isomers. Moreover, it exhibited excellent selectivity for critical aromatic isomers of chloroaniline, bromaniline, iodoaniline, toluidine and xylidine isomers and shows advantageous separation capability over the commercial polysiloxane stationary phase. This work presents a promising future of calixarene-based ionic liquid as a new type of stationary phase in GC separations. |
| Databáze: | OpenAIRE |
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