| abstract |
PROBLEM TO BE SOLVED: To reduce the risk of side effects of a drug by purifying a target substance at low cost and with a weak stimulus by using a material that changes to protein such as protein A, and further to an adsorbent with high target substance adsorption capacity, Providing a purification method of a target substance using an adsorbent. An adsorbent using a low molecular weight compound represented by formulas (I), (II) and (III) capable of recovering a target substance with weak stimulation is used as an adsorption site, which has a plurality of amino groups. An adsorbent that can be manufactured at low cost and can reduce the risk of side effects of pharmaceuticals by introducing it into molecules and immobilizing the macromolecules to which this adsorption site has been introduced. [Selected figure] Figure 1 |