(9) 13: Materials such as ion-exchange resins, gel filtration resins for column chromatography, and affinity chromatography resins used for the separation or purification of toxins.
(9) 13：用来分离和净化毒素的材料，例如，离子交换树脂、进行柱层析的凝胶过滤树脂，和亲合色谱法树脂。