▎ 摘　　要

NOVELTY - The utility model relates to the technical field of biological experiment device, especially a graphene oxide-polyethylene imine centrifugal separating device, comprising a cup body, an outer grid baffle, an inner grid baffle, a chassis, an impeller, a motor and a base, the chassis is fixed above the base, the inner grid is fixed on the chassis, the outer grid is rotatably mounted on the chassis, the cup body is fixed on the outer grid; the side wall of the outer grid is provided with an outer baffle wall and an outer gap, the side wall of the inner baffle is provided with an inner baffle wall and an inner gap, the inner baffle wall and the outer gap are closed in the inner grid baffle to form an inner cavity, and an outer cavity is formed between the outer grid and the cup body, the motor is set in the base, and the output end is connected with the impeller, the bottom of the outer grid is extended with a rotating handle along the radial direction, the centrifugal device is set in the cup body of the controllable separating space, greatly improving the purifying efficiency of graphene oxide-polyethylene imine solution, at the same time, it is convenient to wash the graphene oxide-polyethylene imine solution for many times, the structure is simple and reliable, the operation is convenient and effective.