SPECIMEN REFINING DEVICE, ANALYSIS SYSTEM, SPECIMEN REFINING METHOD, AND CONTROL PROGRAM

A sample purification apparatus (1) includes a container (50) for separating a mixed sample based on a specific gravity difference with the use of a heavy solution, a pipe (11) for introduction into the container, of an oxidizing agent for treatment of a contaminant contained in the mixed sample, a pipe (12) for introduction of the heavy solution into the container, a flow-out port (20) arranged so that a supernatant of a solution in the container due to the introduction of the heavy solution is flowed out to the outside of the container, a detection filter (21) that collects a component in the mixed sample, the component being lighter in specific gravity than the heavy solution by receiving of the supernatant flowed out from the flow-out port, at least one valve (31a, 32a) provided in the pipe (11) and the pipe (12), the at least one valve configured to switch between entry and exit of a solution, and a control unit (501) that controls the at least one valve.