大孔吸附树脂是一类不含离子交换基团的交联聚合物 ,具有网状结构和很高的比表面积 ,且由于选用的骨架材料不同有非极性与极性之分。一般根据所需分离纯化物质的分子大小及极性强弱 ,选择与之相适应的大孔吸附树脂 ,通过物理吸附有选择地吸附有机物质达到提纯分离的目的 ,与离 Macroporous resin is a class of non-ion exchange groups of cross-linked polymer, with a network structure and a high specific surface area, and because of the choice of skeleton materials have different non-polar and polar points. Generally according to the separation of purified substances of molecular size and polarity of strong and weak, select the appropriate macroporous resin adsorption by physical adsorption selective adsorption of organic matter to achieve the purpose of purification, separation