In order to improve the stereoselectivity of the native β-cyclodextrin boned-silica gel stationary phase, 2,6-di-O-benzyl-β-cyclodextrin bonded stationary phase (BCDS) was prepared via the spacer γ-glycidoxypropyltrimethoxy-silane. The bonded silica was characterized by three methods (Fourier transform infrared spectrogram, Molish color reaction, X-ray optical electrical energy spectrogram). The chromatographic performances of BCDS were appraised by using toluene, dimethyl phthalate and phenanthrene. The se...