Extracting and purifying device

The utility model relates to an extracting and purifying device, wherein a vacuum extraction chamber is composed of a cylinder body and a sealed cover plate, wherein the sealed cover plate is provided with at least two groups of transfer joints and each of the transfer joints is provided with a control valve. The cylinder body is provided with a vacuum pump interface provided with a control valve, and the inside of the cylinder body is provided with a test tube rack. The test tube rack is matched with collection test tubes corresponding to the transfer joints on the sealed cover plate, and the upper parts of the transfer joints are respectively connected with sucking and filtering funnels or SPE purifying posts. The utility model has the advantages that the structure is compact, and disperse extracting devices and purifying devices are integrated into one apparatus. Thus, the cost is lowered and the versatility of the utility model is enhanced. Furthermore, the operation and maintenance are convenient to realize.