Solid-phase extraction of room-temperature imidazolium ionic liquids from aqueous environmental samples
Solid-phase extraction of room-temperature imidazolium ionic liquids from aqueous environmental samples
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DOI：
10.1007/s00216-004-2932-3
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发表时间：
2005
影响因子：
4.3
通讯作者：
P. Stepnowski
中科院分区：
文献类型：
--
作者：
P. Stepnowski
Owing to their favorable properties, ionic liquids have recently gained recognition as possibly environmentally benign solvents. Now among the most promising industrial chemicals, they have already been labeled “green”, but this appellation seems due entirely to their very low vapor pressure. This growing interest in the various applications of ionic liquids will soon result in their presence in the environment. Therefore, reliable analytical tools for the environmental analysis of ionic liquids need to be developed urgently. This paper presents a newly developed analytical procedure for the enrichment of 1-alkyl- and 1-aryl-3-methylimidazolium ionic liquids from water samples. The method is based on cation exchange solid-phase extraction followed by selective elution. Pre-concentrated samples are subjected to high-performance liquid chromatography (HPLC) with an advanced methodology for qualitative and quantitative analysis. The overall procedure was verified by using standard spiked samples of tap water, seawater, and freshwater.
