代谢
氟化物可能通过吸入、口服或皮肤接触而被吸收。一旦进入人体,氟离子就会在血液中运输并在骨骼和牙齿中积累。氟化物被认为会取代与羟磷灰石——骨骼形成过程中的一个矿物相相关的羟离子(OH-)和可能的碳酸氢根离子(HCO3-)。生成的物质是氟磷灰石。一旦被吸收,一部分氟化物会沉积在骨骼中,其余大部分通过尿液排出,少量通过粪便、汗液和唾液排出。
Fluorides may be absorbed following inhalation, oral, or dermal exposure. Once in the body, the fluoride ion is transported in the blood and accumulates in the bones and teeth. Fluoride is believed to replace the hydroxyl ion (OH-) and possibly the bicarbonate ion (HCO3-) associated with hydroxyapatite—a mineral phase during formation of bone. The resultant material is hydroxyfluorapatite. Once absorbed, a portion of the fluoride is deposited in the skeleton, and most of the remainder is excreted in the urine, with smaller amounts in feces, and sweat, and saliva. (L963)
来源:Toxin and Toxin Target Database (T3DB)