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.
目的研制载脂蛋白a1和B检测试剂。方法采用硫酸葡聚糖沉淀、超速离心、层析等方法。
Objective to prepare a kit for detecting apoprotein (apo) A1 and B. Methods Dextran sulfate precipitation, ultracentrifugation, chromatography, and so on.
前言： 目的为了评价凝集素亲和层析离心柱化学发光检测甲胎蛋白异质体（ AFP-L3）在诊断原发性肝癌中的意义。
Objective To evaluate the application of alpha-fetoprotein variants assay in diagnosis of primary hepatocellular carcinoma(PHC) by lectin-affinities chemiluminescence.
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