Chemically modified electrodes (CME) originated in 1975 is one of the foremost fields of electrochemistry and electroanalytical chemistry at present. Nowadays, CME has been widely used in electrochemical analysis because of its fast analysis speed, simple and easy operation, low cost, low reagent consumption, high sensitivity, good selectivity, and other advantages. An important application of CME is applying the electrocatalytic activity of the modifer into the increase in sensitivity and selectivity of an...