摘要
空气中^(210)Pb、^(210)Bi和^(210)Po的活度浓度不仅决定于自身的衰变,还与气溶胶的干湿沉降有关,三者之间处于不平衡状态。目前国内暂无气溶胶中^(210)Pb测量方法相关标准,通过^(210)Pb、^(210)Bi和^(210)Po三者之间的关系可以确定气溶胶^(210)Pb的测量方法。介绍了气溶胶^(210)Pb常用5种分析方法,通过探测下限的比较,分析了各种分析方法的特点。
The activity concentration of ^210Pb, ^210Bi and ^210Po in air is not only determined by radioactive decay, but also related to the dry and wet deposition of aerosol. There is a radioactive disequilibrium. At present there is no standard method to measure ^210Pb in aerosol. Utilizing the relationship between ^210Pb, ^210Bi and ^210po can measure ^210Pb in aerosol. This paper introduced five commonly used methods. The characteristics of each analytical methods were summarized though the comparison of the detection limit of each method.
出处
《四川环境》
2017年第1期135-138,共4页
Sichuan Environment
