Abstract
For enantioseparations of chiral drugs in capillary electrophoresis, chiral ionic liquids (CIL) can be employed instead of traditional running buffer containing a chiral selector. CILs can be applied solely or in addition to the often used cyclodextrin derivatives. Here the separation of phenethylamines, especially of ephedrine, is described using tetrabutylammonium l-argininate (125 mM) in phosphate buffer (75 mM, pH 1.5) in addition to β-cyclodextrin (30 mM). Using this dual-chiral running buffer system ephedrine, pseudoephedrine and methylephedrine, but not norephedrine, could be easily resolved.
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Wahl, J., Holzgrabe, U. (2019). Enantioseparation by Capillary Electrophoresis Using Cyclodextrins in an Amino Acid-Based Ionic Liquid Running Buffer. In: Scriba, G.K.E. (eds) Chiral Separations. Methods in Molecular Biology, vol 1985. Humana, New York, NY. https://doi.org/10.1007/978-1-4939-9438-0_20
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DOI: https://doi.org/10.1007/978-1-4939-9438-0_20
Publisher Name: Humana, New York, NY
Print ISBN: 978-1-4939-9437-3
Online ISBN: 978-1-4939-9438-0
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