Synthesis and application of mono-6-(3-methylimidazolium)-6-deoxyperphenylcarbamoyl-β-cyclodextrin chloride as chiral stationary phases for high-performance liquid chromatography and supercritical fluid chromatography

2008 ◽  
Vol 1182 (1) ◽  
pp. 136-140 ◽  
Author(s):  
Teng-Teng Ong ◽  
Ren-Qi Wang ◽  
I. Wayan Muderawan ◽  
Siu-Choon Ng
Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2425 ◽  
Author(s):  
Tsunehisa Hirose ◽  
Daniel Keck ◽  
Yoshihiro Izumi ◽  
Takeshi Bamba

The retention behavior of a wide variety of stationary phases was compared in supercritical fluid chromatography (SFC) and normal-phase high-performance liquid chromatography (NP-HPLC). We also attempted to elucidate the retention behavior in SFC by investigating the selectivity of the different stationary phases. SFC separation conditions with polar stationary phases, such as silica gel (SL) and diol (Diol) phases, operate via adsorptions that include hydrophilic and ionic interactions similar to those in NP-HPLC. Moreover, non-polar stationary phases, such as pentabromophenyl (PBr), pyrenylethyl (PYE), and octadecyl (C18), could be used despite the non-polar mobile phase conditions, because the dispersion and π-π interactions were stronger in SFC than in HPLC. These results reflect the selectivity of the stationary phase and its retention factor, thus providing useful information for the selection of appropriate stationary phases for particular analytes.


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