Sephadex is a gel filtration resin prepared by crosslinking dextran with epichlorohydrin. Different types of Sephadex differ in their degree of cross-linking and hence in their degree of swelling and their molecular fractionation range.
葡聚糖凝胶G-75超细颗粒是通过将葡聚糖与表氯醇交联制备的凝胶过滤填料。不同类型的 Sephadex 的交联程度不同,因此其溶胀度和分子分离范围也不同。