The invention provides a purification column that contains an adsorbent and shows excellent adsorptivity. Specifically, this purification column is provided with an adsorbent and a case that contains the adsorbent and has a tubular housing and treatment fluid supply port and discharge port at both ends of the housing. The purification column is characterized in that: a distribution plate is disposed at least on one end face side of the adsorbent； the distribution plate has a plurality of openings that allow communication of the treatment fluid, a support body, and a protrusion extending from the supporting body to the adsorbent side； and at least part of the protrusion is inserted into the adsorbent.
