Chiral column chromatography[1][2] is a variant of column chromatography that is employed for the separation of chiral compounds, i.e. enantiomers, in mixtures such as racemates or related compounds. The chiral stationary phase (CSP) is made of a support, usually silica based, on which a chiral reagent or a macromolecule with numerous chiral centers is bonded or immobilized.[3]
The chiral stationary phase can be prepared by attaching a chiral compound to the surface of an achiral support such as silica gel. For example, one class of the most commonly used chiral stationary phases both in liquid chromatography and supercritical fluid chromatography is based on oligosaccharides[4] such as Amylose Cellulose or Cyclodextrin (in particular with β-cyclodextrin, a seven sugar ring molecule) immobilized on silica gel.
The principle can be also applied to the fabrication of Monolithic HPLC columns[5] or Gas Chromatography columns.[6] or Supercritical Fluid Chromatography columns.[7]
^Allenmark, Stig; Schurig, Volker (1997). "Chromatography on chiral stationary phases". Journal of Materials Chemistry. 7 (10): 1955–1963. doi:10.1039/A702403G. ISSN 1364-5501.
^Teixeira, Joana; Tiritan, Maria Elizabeth; Pinto, Madalena M. M.; Fernandes, Carla (2019). "Chiral Stationary Phases for Liquid Chromatography: Recent Developments". Molecules. 24 (5): 865. doi:10.3390/molecules24050865. ISSN 1420-3049. PMC 6429359. PMID 30823495.
^Nazareth, Celina; Pereira, Sanelly (2020). "A Review on Chiral Stationary Phases for Separation of Chiral Drugs" (PDF). International Journal of Pharmaceutical and Phytopharmacological Research. 10 (3): 77–91.
^Yashima, Eiji (2001). "Polysaccharide-based chiral stationary phases for high-performance liquid chromatographic enantioseparation". Journal of Chromatography A. Chiral Separations. 906 (1): 105–125. doi:10.1016/S0021-9673(00)00501-X. ISSN 0021-9673. PMID 11215883.
^Yingjie Li; Chunhui Song; Lingyi Zhang; Weibing Zhang; Honggang Fu (January 2010). "Fabrication and evaluation of chiral monolithic column modified by β-cyclodextrin derivatives". Talanta. 80 (3): 1378–1384. doi:10.1016/j.talanta.2009.09.039. PMID 20006102.
^Yi-Ming Liu; Patricia Gordon; Shelby Green; Jonathan V. Sweedler (September 2000). "Determination of salsolinol enantiomers by gas chromatography-mass spectrometry with cyclodextrin chiral columns". Analytica Chimica Acta. 420 (1): 81–88. doi:10.1016/S0003-2670(00)00986-7.
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