Sample treatment device for detecting trace elements in cosmetics

The sample processing device comprises a plate washing machine body, an operation groove is formed in the front of one side of the upper end face of the plate washing machine body, inserting grooves are formed in the two sides of the inner wall of the operation groove, electric push rods B are installed on the inner walls of the inserting grooves, and the electric push rods B are connected with the plate washing machine body. Cover plates are fixedly mounted at the other ends of the electric push rods B, a strip-shaped groove is formed in one side of the outer surface of one cover plate, an electrode slice D is mounted on the inner side of the strip-shaped groove, a strip-shaped plate is mounted on one side of the outer surface of the other cover plate, and an electrode slice C is mounted on the other side of the outer surface of the strip-shaped plate; and pressure sensors are arranged in the arc-shaped clamping plates. After the cover plate is not closed for a certain time, the cover plate can be automatica