一、引言 砷、磷两元素对于生命过程都具有积极的作用,如服用少量的砷会刺激生命过程的进行。几乎所有的动植物体内均含有极微量的砷。磷对于生命更是有着特殊意义,因为它含在人和动物体内某些蛋白质中(有如在神经和脑的组织中),同时也含于骨胳和牙齿中。尽管如此,这两种元素过多地进入人和动物体内,仍然是异常 I. Introduction Arsenic and phosphorus both have a positive effect on the life process, such as taking a small amount of arsenic will stimulate the process of life. Almost all plants and animals contain trace amounts of arsenic. Phosphorus has a special meaning for life because it is contained in certain proteins in humans and animals (as in nerve and brain tissue) and also in bones and teeth. Nonetheless, excessive entry of both elements into humans and animals remains an aberration