▎ 摘　　要

NOVELTY - The utility model relates to the technical field of biological experiment device, especially to a graphene oxide-polyethylene imine solution rotary evaporation device, comprising an evaporation bottle, a right plug, a left plug, a pressing block, a fixing frame, a motor, a driving wheel and a driven wheel, the evaporation bottle is provided with a bottle body, the two ends thereof are provided with a thin neck with an opening; the right plug is rotatably mounted in the right fine neck, the left plug is rotatably mounted in the left side thin neck, the motor is connected with a driving wheel through a gear, the bottle body is fixed with a driven wheel matched with the driving wheel, the right plug is provided with at least one air inlet hole, the left plug is provided with an air outlet hole, by rotating the bottle body of the evaporation bottle, increasing the evaporation surface of the solution, and will not cause excessive graphene oxide-polyethylene imine condensed on the container surface inconvenient processing, at the same time, introducing dry heated air into the evaporation bottle body, accelerating the air flow, further accelerating the evaporation speed. By setting the water inlet, the continuous input of the solution can be realized, and the evaporation concentration efficiency of the solution is improved.