▎ 摘　　要

NOVELTY - Preparing nano-material ion-liquid composite modified electrode involves dispersing graphene oxide, multi-wall carbon nanotubes and (BMIM)propane in water to obtain graphene oxide-methanesulfonate (GO-MWCNTS-BMIM)propane dispersion, and coating GO-MW CNBT-(BMIM) PF6 dispersion liquid on surface of glassy carbon electrode to obtain nano material ion liquid composite-liquid modified electrode. USE - Method for preparing nano-material ion-liquid composite modified electrode used for determination and measuring content of diethylstilbestrol in livestock and poultry meat (all claimed); used in hexoestrol measurement. ADVANTAGE - The method enables to prepare nano-material ion-liquid composite modified electrode, which has wide linear range, low detection limit, and strong anti-interference ability, and improves compatibility and stability of multi-wall carbon nano-tube, and greatly increases adsorption capacity of nano material ion liquid modified electrode to diethylstilbestrol. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a application of nano-material ion-liquid composite modified electrode, which is provided in determination of diethylstilbestrol. DESCRIPTION OF DRAWING(S) - The drawing shows SEM image of different modified electrodes; FIG. 1 A is SEM image of GO/GCE; FIG. 1 B is SEM image of MWCNTs/GCE; FIG. 1 C is SEM image of GO-MWCNTs/GCE; FIG. 1 D is SEM image of GO-MWCNTS- (BMIM) PF6/GCE.