Pre-decarburization liquid cation analysis pretreatment device

The utility model discloses a pre-decarburization liquid cation analysis pretreatment device which comprises a stirrer, a glass tube, a volumetric flask and an ultrasonic heating water bath kettle, the stirrer comprises a stirring rod, and a plurality of stirring blades are arranged on the stirring rod; the stirring rod is a plastic rod; the glass tube is filled with cationic resin, and the stirring rod extends into the glass tube from the stirrer; the volumetric flask is arranged below the glass tube, and the bottom of the glass tube is connected with the volumetric flask through a liquid outlet tube; and the volumetric flask is arranged in the ultrasonic heating water bath kettle. According to the utility model, the stirrer is adopted to interfere the reaction of the resin and the decarburization solution, so that the phenomenon that a large amount of CO2 escapes to bring out an aqueous solution due to too high reaction speed is avoided, the CO2 generated in the reaction process can be discharged in time, a