A barcode with enhanced visual quality may be used with an item such as a document. An adsorbent for removing hepatitis C virus which comprises a compound capable of adsorbing hepatitis C virus as immobilized on a water-insoluble carrier, an adsorption apparatus including said adsorbent, and an adsorbing method for removing HCV. The present invention can effectively eliminate motion artifacts caused by the scanned object’s own motions in the CT scanning, and can be easily embedded into the existing CT scanning equipments.