摘要
饮用水中镭的监测一直都很受重视,因为镭是亲骨性核素,就内照射而言,它是毒性最强的元素之一。目前常见的水中镭分析方法由于样品放置时间长,并不太适合于应急分析。采用IAEA提出的饮用水中镭分析方法,可以达到快速测量的目的。对0.5 L样品,低水平液闪谱仪测量1 h对226Ra和228Ra的探测下限分别为0.01Bq/L和0.06Bq/L,能用于核应急情况下的监测,该方法还可用于环境水平下的镭分析测量。
As radium was one of the bone seeking radiopharmaceuticals and one of the most toxic elements in terms of internal exposure,the determination of radium in drinking water has always been attached great attention.Current analytical methods of radium in water were not suitable for emergency analysis due to the long storage time.This study utilized the analytical method proposed by IAEA to achieve the aim of rapid determination with the detection limit of 0.01Bq/L for 226Ra and 0.06Bq/L for 228Ra during 1 hour determination by low level liquid scintillation spectrometer.This can be used for both emergency monitoring and the analysis and determination of radium under environment level.
出处
《四川环境》
2016年第3期32-35,共4页
Sichuan Environment
关键词
镭
饮用水
液闪
Radium
drinking water
LSC
