Novel PdCoAg/C nanostructures were successfully synthesized by the polyol method in order to develop electrocatalysts,related to the glucose sensor performance of the high glycemic index in beverages.The characterization of this novel PdCoAg/C electrocatalyst was performed by X-ray diffraction,scanning electron microscopy,transmission electron microscopy,and high-resolution transmission electron microscopy equipped with energy dispersive X-ray.The characterization results revealed that electronic state of the PdCoAg/C electrocatalyst was modified by the addition of the third metal.The electrochemical performances of the sensor were investigated by cyclic voltammetry and differential pulse voltammetry.The prepared enzyme-free sensor exhibited excellent catalytic activity against glucose with a wide detection range (0.005 to 0.35 mmol·L-1),low limit of detection (0.003 mmol·L-1),high sensitivity (4156.34 μA·mmol-1·L·cm-2),and long-term stability (10 days) because of the synergistic effect between the tary metals.The glucose contents of several energy drinks,fruit juices,and carbonated beverages were analyzed using the novel PdCoAg/NGCE/C sensor system.These results indicate the feasibility for applications in the foods industry.