Phosphatidyl choline of high purity (PC content 96.2%) was prepared from commerial soybean powder phospholipids (PC content 40.0%) by coordination adsorption column chromatography (CACC).

• 采用配位吸附柱层析法分离纯化市售粉末大豆磷脂(磷脂酰胆碱含量40%25)；得到高纯度卵磷脂产品(磷脂酰胆碱含量96.；2%25)。