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Preparation of Sulfamethazine-Affinity Membrane and Its Application in IgG Purification
Author(s): MEI Jian-feng, ZHU Li, YI Yu, CHEN Jian-shu, WNAG Hong, YING Guo-qing
Pages: 133-
136
Year: 2013
Issue:
2
Journal: Pharmaceutical Biotechnology
Keyword: 亲和膜; 磺胺二甲基嘧啶; IgG; 吸附;
Abstract: 以醋酸纤维素膜为基膜,采用环氧氯丙烷活化法活化基膜并在碱性条件下偶联磺胺二甲基嘧啶亲和配基,制备磺胺二甲基嘧啶亲和膜,对活化条件进行了优化并对其性能进行了表征。结果表明:膜上环氧基和配基含量分别为158.6μmol/g和114.6μmol/g,将其应用于腹水中分离纯化IgG,实验显示IgG在膜上的吸附平衡符合Langmuir方程,最大IgG吸附量为5.7 mg/g,一步分离IgG的纯度大于95%。
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