Method and system for automatically detecting food additives based on Internet of things

The invention belongs to the technical field of food safety, and discloses a method and a system for automatically detecting food additives based on Internet of things. The system is provided with a food placing chamber, leads, chromatographic columns, a box cover, a circuit board, a signal processing box, a socket, a shell, five buttons, a display screen, a first placing chamber, a second placingchamber, a third placing chamber and a fourth placing chamber; the upper end of the shell is embedded with the display screen, the five buttons are arranged around the display screen and are embeddedin the shell, and food placing chambers are embedded in the shell; the four food placing chambers are the first placing chamber, the second placing chamber, the third placing chamber and the fourth placing chamber in sequence, the upper ends of the food placing chambers are welded with the box cover, and the chromatographic columns are inserted in the middle of the food placing chambers. The system solves the technical pr