The present invention relates to a process for the purification of antibodies from one or more impurities in a liquid, which process comprises contacting said liquid with a first chromatography resin comprised of a support to which multi-modal ligands have been immobilised to adsorb the antibodies to the resin, wherein each multi-modal ligand comprises at least one cation-exchanging group and at least one aromatic or heteroaromatic ring system; adding an eluent to release the antibodies from the resin; and contacting the eluate so obtained with a second chromatography resin. In one embodiment, the ring-forming atoms of the aromatic or heteroaromatic entity are selected from the group consisting of C, S and O, and the cation exchanging group is a weak cation exchanger.
本发明涉及一种从液体中纯化
抗体并去除一种或多种杂质的方法,该方法包括将所述液体与第一色谱
树脂接触,该色谱
树脂由支持体和多模态
配体组成,其中每个多模态
配体包括至少一个阳离子交换基团和至少一个芳香或杂芳环系统,以吸附
抗体到
树脂上;加入洗脱剂以从
树脂中释放
抗体;并将所得的洗脱物与第二色谱
树脂接触。在一种实施例中,芳香或杂芳实体的环形原子选择自C、S和O组成的群体,并且阳离子交换基团是弱阳离子交换剂。