▎ 摘　　要

NOVELTY - adding device of this utility model claims a kind of ionic liquid, comprising a motor, a gear, a lead screw, a sample injector, a piston, a graphene aerogel, fastening clamping head, the output shaft of said electric motor is coaxially connected with the gear, gear is meshed with screw, screw lower end connected with the injector; the needle cylinder of the injector has the double-layer structure, the two layers are filled with the graphene aerogel. can be adjusted by motor to supply power, thereby pushing injector piston uniform speed under the pressure function of stabilizing the ionic liquid extruded from the needle tip, can avoid the viscous ionic liquid inlet attached to inner wall of the injector needle tube, which greatly improves the precision of the charging. In addition, the design of the graphene aerogel layer, which is good for keeping the internal temperature change to prevent ionic liquid structure volume change or agglomeration structure change occurs because the temperature is too high or too low.