环境样品中^(228)Ra分析方法述评

Research Progress of Ra-228 Analysis Method in Environmental Samples

综述了饮用水、海水及固体等环境样品中^(228)Ra的分析方法,主要介绍了蒸发法、共沉淀法、吸附法、离子交换法、萃取法等样品处理方法,对几种不同方法的使用条件进行了分析;对常用的α谱、γ谱、β计数法等测量方法进行了评述,对不同方法的探测限和优缺点进行了比较分析。根据研发趋势,应开展快速前处理、有效分离、准确测量的研究,尽快优化环境样品中^(228)Ra的分析方法。

This paper reviewed the analysis method of ^(228)Ra in environmental samples such as drinking water,sea water and so on.Sample pretreatment such as evaporation,coprecipitation,adsorption,ion exchange and extraction were introduced and discussed.The common measurement method such as alpha spectrometry,gamma spectrometry and beta counting method were reviewed,and the detection limits,advantages and disadvantages were compared and analyzed.According to the research and development,rapid pretreatment,effective separation and accurate measurement should be carried out to optimize the analysis method of ^(228)Ra in environmental samples.