For many years the leading fixatives were the animal products ambergris, civet , musk and castoreum.

多，用的较多的固定剂是动物品龙涎香、香猫香、麝香、以及河狸香。

Methods The eyeballs of rat were fixed in the improved fixative solution mixed with paraform,glacial acetic acid and acetone.

方法将鼠眼球投入到由多聚甲醛、冰醋酸和丙酮组的改良固定液中固定后蜡切片,经HE染色后在显微镜下观察。