葡聚糖凝胶(分子筛)是凝胶过滤剂,用于多糖的分离或蛋白质中除去低分子化合物等,用途甚广,是一种提纯及鉴定的新技术。但国产葡聚糖凝胶与国外产品相比,质量还有差距。为赶超国际先进水平,生产出高质量葡聚糖凝胶供科研应用,我们在中国医学科学院分院指导下进行了研究试制。方法如下: Sephadex (molecular sieve) is a gel filter for the separation of polysaccharides or proteins to remove low molecular weight compounds, a wide range of uses, is a purification and identification of new technologies. However, the domestic dextran gel compared with foreign products, the quality gap. In order to catch up with and surpass the international advanced level and produce high-quality dextran gel for scientific research and application, we conducted a trial trial under the guidance of the branch of Chinese Academy of Medical Sciences. Methods as below: