氟进入机体后主要由尿排出,未接触过氟的人,进入体内的氟3小时内可排出20%,24小时内排出约50%。另有报导以 F~(18)作观察,摄入后8小时内有80—90%被吸收,并迅速自尿排出。所以,尿氟含量的高低可作为氟吸收程度的一客观指标。近年来,对收集何时尿样更为合适,意见不一。为了探讨这个问题,并了解污染地区居民尿氟排泄的规律,特进行此项工作。 Fluorine into the body mainly by the urine discharge, people who have not been exposed to fluoride, into the body of fluorine can be discharged within 3 hours 20%, discharged within 24 hours about 50%. Another reported F ~ (18) for observation, 8 hours after ingestion 80-90% is absorbed, and quickly from the urine. Therefore, the level of urinary fluoride can be used as an indicator of the degree of fluorine absorption. In recent years, when collecting urine samples is more appropriate, different opinions. In order to explore this issue, and understand the rules of urinary fluoride excretion of residents in contaminated areas, special conduct this work.