behaviour [21–26]. Thus, it is well-known that the pharmacological
activity of the S-enantiomers of many arylpropionic
acid derivatives is higher than that of their R-enantiomers
[21–26]. Due to the above-mentioned differences,
several members of this family, such as S-naproxen, S-ibuprofen
and S-ketoprofen have been introduced as single
enantiomer drugs [25–31].
The separation of enantiomers of chiral carboxylic acid
derivative drugs using HPLC has been extensively reported in
the literature [32–41]. While various HPLC chiral stationary
phases (CSP) were proven suitable for this purpose [32–36],
polysaccharide-based CSPs are most commonly used [37–42].
In the present study, the separation of enantiomers of
14 chiral carboxylic acid derivatives was attempted on
six different polysaccharide-based chiral HPLC columns
with three polar organic eluents. Along with the successful
separation of analyte enantiomers, the emphasis of this
study was on differences in enantiomer elution order (EEO)
between various columns and mobile phases. In addition,
the effect of column temperature on the retention and separation
of enantiomers was studied.