活性炭是一种吸附力较强的吸附剂,具有吸附热原、脱色等作用,是注射剂生产中常使用之辅料。因其质量之好坏与使用得当与否对注射剂的质量有较大关系。活性炭颗粒内部有许多的微孔,具有极大的活性表面,一般活性炭具有很强的吸附力,可吸附其10～30％重量的溶质,甚至达相等其重量之溶质。 Activated carbon is a strong adsorption of adsorbent, with the role of adsorption of pyrogen, bleaching, injection is often used in the production of accessories. Because of its quality and use properly or not, the quality of injection has a greater relationship. Activated carbon particles within the many pores, with a very active surface, the general activated carbon has a strong adsorption, it can adsorb 10 to 30% by weight of solute, or even up to its weight of solute.