The application discloses a chemical modified
electrode for detecting
furazolidone and an
electrochemical detection method thereof, and relates to the technical field of
electrochemical detection, and comprises the following steps: (1) preparation of longan carbon; (2) preparation of
nitrogen-doped longan carbon material (NCs); (3) preparation of
nitrogen-doped longan carbon-polydopamine material (NCs-PDA); (4) preparation of NCs-PDA / SPCE modified
electrode; (5)
electrochemical detection of FZD; and (6) characterization of NCs-PDA / SPCE. The chemical modified
electrode for detecting
furazolidone and the electrochemical detection method thereof use longan shells as a
carbon source,
chitosan and
urea as
nitrogen sources, and prepare a nitrogen-doped
porous carbon material through a high-temperature
carbonization method, combine polydopamine and a portable disposable screen-printed carbon electrode (SPCE), prepare an electrochemical modified electrode NCs-PDA / SPCE for detecting
furazolidone, and establish an electrochemical
rapid detection method for detecting furazolidone in animal-derived food based on the modified electrode.