1808年初Humphrey Dany发现镁离于,以后知其在生物界分布很广泛。人体血浆、组织间液等细胞外液的阳离子镁占第四位,它在细胞内液的含量仅少于钾离子,因它们占阳性离子大部分,故必须重视其在细胞内的作用。多数研究证实,它们是作为辅酶参与细胞膜、细胞内酶的活性。近年来原子吸光计的发明,阳性离子可以定量,不少报告 Humphrey Dany discovered magnesium from the beginning of 1808, and later it was widely distributed in the biological world. Human plasma, interstitial fluid and other extracellular fluid cationic magnesium in fourth place, its content in the intracellular fluid is only less than potassium ions, because they account for the majority of positive ions, it must pay attention to its role in the cell. Most studies confirm that they are involved as coenzyme in the cell membrane, intracellular enzyme activity. In recent years, the invention of atomic absorbers, positive ions can be quantified, many reports