Basic Indole Ring Enantiomer Separation on Cellulose Tris(3,5‐dimethylphenylcarbamate) Coated TiO₂/SiO₂ Chiral Stationary Phase

Abstract

Cellulose tris(3,5‐dimethylphenylcarbamate) (CDMPC) coated TiO₂/SiO₂ has been prepared by coating CDMPC on TiO₂/SiO₂ which consists of micrometer‐sized silica spheres as core and nanometer‐sized titania particles as surface coating. Eight basic indole ring derivative enantiomers were separated on this CDMPC coated CSP and symmetrical peaks were obtained using hexane as the mobile phase and various alcohols as modifiers. The influence of the mobile phase composition and structural variation of the solutes on the enantioseparation was investigated and discussed.

Keywords:

• TiO₂/SiO₂
• chiral stationary phase
• indole ring derivative enantiomers
• chiral separation

Notes

This work was supported by the National Nature Science Foundation of China (Grant: 20375045, 20475057, 20675085), the Program of the Light in China's Western Region (2003) and the Province Nature Science Foundation of Gansu (NO. 3ZS041‐A25‐23).