Large advances in the development of enantioselective analysis
methods have been made since the US Food and Drug Administration
and the European Agency for the Evaluation of Medicinal
Products have published guidelines on the development of chiral
drugs [1,2]. Indeed, the production of pure enantiomers and the
quality control of chiral drug substances have become key issues
for pharmaceutical industry and regulatory agencies. Nowadays, LC
is an essential tool to perform the enantioseparation of chiral compounds,
which can be largely attributed to the existence of many
different kinds of chiral stationary phases (CSPs). Among these,
polysaccharide-based CSPs are used in more than 80% of the analytical
enantioseparations [3]. Different kinds of mobile phases can
be used together with polysaccharide-based CSPs, corresponding
to normal-phase, reversed-phase, polar organic and sub/supercritical
fluid modes. The application of the polar organic mode
(POM) in combination with polysaccharide-based CSPs for enantioseparations
is well-established, owing to short analysis times,
alternative chiral recognition mechanisms compared to other LC
modes and high solubility for many analytes in the mobile phases