摘要
血铅生物半衰期较短,只能反应人体短近铅中毒状况,存在一定局限性;骨铅生物半衰期较长,能够反应人体铅负荷的累积效应,有必要进行检测。体内X射线荧光骨铅检测系统从发明至今已有30多年的历史,文章根据激发源的不同将其分为三类系统进行分析讨论,作为国内开展相关研究工作的借鉴。
Cumulative exposure is more predictive of chronic toxicity than recent exposure that is what blood levels mostly reflect. Bone lead levels have served as a cumulative dosimeter of lead exposure for many years because of the long residence time of Pb in bone, and it has been more than 30 years since in vivo x-ray fluorescence （XRF） was first made. This paper summarizes the world-wide advances in the measurement systems with ^57 Co, ^125I and ^100Cd excited respectively.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2010年第2期72-75,共4页
Environmental Science & Technology
基金
华中农业大学科技创新基金(2006-7)
武汉市科技攻关项目(200860423223)
关键词
骨铅
X射线荧光
放射源
bone lead
X-ray fluorescence （ XRF）
radioactive source
