离子液体在分离技术中的应用

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中图分类号：0645.4 文献标志码：Adoi： 10.3969/j .issn.1673-5862.2025.03.002

Applications of ionic liquids in separation technology

WU Dan，XUE Yuhan， SUN Jiayi， FU Yajun，TIAN Peng （Collge of Chemistry and Chemical Engineering，Shenyang Normal University，Shenyang 1l0034，China）

Abstract： Ionic liquids usually consist of large， asymmetric organic cations and a variety of inorganic or organic anions. Therefore， ionic liquids have many unique properties， such as negligible vapor pressure，good thermal stability，adjustable viscosity，miscibility with water and organic solvents，and good extraction ability for various organic compounds and metal ions. In this paper，the application of ionic liquids in liquid chromatography is reviewed， including the separation principle of ionic liquids as additives and the application of ionic liquids as mobile phase additives. The applications of imidazole ionic liquids， phosphorus ionic liquids， pyridine ionic liquids and guanidine ionic liquids in gas chromatography are introduced. The application of ionic liquids as extraction solvents in sample preparation is introduced from aspects such as the extraction mechanism of ionic liquids，the extraction of organic pollutants，the extraction of metal pollutants， and the extraction of bioactive compounds from natural plants.

Key words： ionic liquids; liquid chromatography; gas chromatography; extraction

离子液体（ionic liquids，ILs）作为一种新型溶剂得到人们的广泛认可。（剩余10435字）