采用硫酸铵沉淀法和阴离子交换层析法从鸡蛋清内提取高纯度卵铁传递蛋白。
High purity ovotransferrin was extracted from albumen by precipitation with ammonium sulfate and ion exchange chromatography in the study.
通过脱蛋白、阴离子交换层析、真空干燥步骤分离纯化水溶性多糖与胞外多糖；
The process for preparing extracellular polyose includes centrifugal filter, vacuum concentrating, dialysis desalting and vacuum drying.
用高速离心、分段盐析、亲和层析、超滤和阴离子交换层析法，从牛胎盘中分离纯化出一种肝细胞生长因子。
A kind of hepatocyte growth factor was purified from cow placenta through high speed centrifugation, salting out, affinity chromatography, ultrafiltration and anion exchange chromatography.
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