Abstract
Supercritical fluid chromatography coupled to a hybrid mass spectrometer (Q-Tof2) equipped with electrospray ion source has been used to separate and characterise a wide range of pharmaceutical racemates. We have chosen diverse molecular structures to demonstrate the potential of such experimental arrangement for high throughput analyses. The use of three different chiral stationary phases and different pressure/temperature working conditions provided clear indications on how such a high throughput method can be developed. The use of mass spectrometry was found to be essential for an unambiguous assignment of the eluting components particularly in the case of complex mixtures. The direct coupling of both systems without the need for a special interface resulted in similar peak shapes and peak widths in the UV and total ion current (TIC) chromatograms.
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