Effect of 1-alkyl-3-methylimidazolium-based ionic liquids as the eluent on the separation of ephedrines by liquid chromatography.

Abstract

The chromatographic behavior of ephedrines (norephedrine, ephedrine, pseudoephedrine and methylephedrine) on a C18 column was studied with different concentrations of 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquids as the eluent at pH 3.0. The addition of ionic liquid has great effects on the separation of these basic compounds: decreasing band… (More)

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Cite this paper

@article{He2003EffectO1, title={Effect of 1-alkyl-3-methylimidazolium-based ionic liquids as the eluent on the separation of ephedrines by liquid chromatography.}, author={LiJun He and Wenzhu Zhang and Liang Zhao and Xia Liu and Shengxiang Jiang}, journal={Journal of chromatography. A}, year={2003}, volume={1007 1-2}, pages={39-45} }