▎ 摘　　要

NOVELTY - Preparing electrochemical sensor electrode for detecting chloride ion comprises (i) dispersing multilayer graphene oxide in 3-7 mol/L potassium hydroxide solution, fully stirring, allowing to stand for 10-12 hours, freezing and drying at -20 degrees C to -195.8 degrees C, calcining for 2 hours at 700 degrees C under protection of argon gas, fully washing, freezing and drying at -20 degrees C to -195.8 degrees C, adding toluene, ultrasonically dispersing for 20-40 minutes, adding 3-amino propyl triethoxysilane, stirring for 12 hours, centrifuging, fully washing by toluene, vacuum drying at 60 degrees C, adding silver nitrate and deionized water, ultrasonically dispersing, adding sodium borohydride and stirring for 1 hour in air at room temperature, centrifuging precipitate with methanol and deionized water to wash, and vacuum drying to obtain nano-silver modified graphene oxide frame material. USE - The electrode is useful for detecting chloride ion. ADVANTAGE - The method: is economical; has high stability, and simple structure and preparation; and is suitable for batch production and on-site chloride ion detection in various environments. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) electrochemical sensor electrode for detecting chloride ion prepared by the above mentioned method; and (2) using method of electrochemical sensor electrode in detecting chloride ions. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of manufacturing process of Ag-rGOF-NH2/GCE sensor (Drawing includes non-English language text).