Enrichment and elution device

An enrichment and elution device belongs to the technical field of elution devices and comprises a main machine, an elution pump is fixedly connected in the main machine, the liquid inlet end of the elution pump is communicated with a liquid inlet pipe, the liquid inlet pipe is communicated with a storage tank, the storage tank is located outside the main machine, eluent is placed in the storage tank, the liquid discharge end of the elution pump is communicated with an elution pipe, and the elution pipe is communicated with the liquid discharge end of the elution pump. The end, away from the elution pump, of the elution pipe extends out of the main machine, and the end, extending out of the main machine, of the elution pipe is communicated with the ultrafiltration concentration pipe so as to elute the ultrafiltration concentration pipe. According to the utility model, the air pump is arranged, so that the flow velocity and the water pressure of eluent are increased under the cooperation of the air pump and th