一般须知[磷在体内的分布、吸收和排泄] 磷酸根离子是细胞内主要的阴离子。磷以无机和有机酸盐的形式存于体内。然而,在细胞外液和血液中,仅有无机磷酸盐。成人血清无机磷的正常值为3～5毫克%,小儿则较高。正常人的血磷与血钙浓度有一定的关系,成人的血清磷和钙的乘积常保持在30～40之间(以毫克%为单位来计算)。 General Information [Distribution, absorption and excretion of phosphorus in the body] Phosphate ions are the major intracellular anion. Phosphorus is present in the form of inorganic and organic acid salts. However, there are only inorganic phosphates in the extracellular fluid and in the blood. Adult serum inorganic phosphorus normal value is 3 ~ 5 mg%, children are higher. Normal blood phosphorus and serum calcium concentration has a certain relationship, the adult serum phosphorus and calcium products often remain between 30 to 40 (in milligrams% of the unit to calculate).