▎ 摘　　要

Graphene/CdTe quantum dots composites had been successfully synthesized, which was characterized by using transmission electron microscope, absorbance spectrum, fluorescence emission spectrum, fluorescence decay curve and X-ray photoelectron spectroscopy. Transmission electron microscope results indicate that CdTe quantum dots have successfully decorated on the surface of graphene. X-ray photoelectron spectroscopy results indicate that graphene has been reduced and have carboxyl and hydroxyl groups on its surface. Fluorescence emission spectrum indicate that the fluorescence property of CdTe quantum dots has been significantly improved after decorating CdTe quantum dots on the surface of graphene. Furthermore graphene/CdTe quantum dots composites were used to quantitative analysis clenbuterol base on the formation of hydrogen bond between clenbuterol and graphene/CdTe quantum dots composites. The fluorescence of graphene/CdTe quantum dots composites can be efficiently quenched by clenbuterol, and there is a good line relationship between the fluorescence intensity decreasing (F-0/F) and the concentration of clenbuterol in the range from 7.22 similar to 108.30 mu mol.L-1 with the detection limit of 4 mu mol.L-1