环境样品中锕系核素的快速分析方法及辐射防护应用

摘要/Abstract

摘要： 介绍了国内外锕系核素快速化学分析方法的研究进展, 包括对样品的化学预处理、常用的分离纯化方法及对各种测量技术的简要概述, 以及这些方法在辐射防护领域如内照射剂量评估、核应急分析、环境放射性监测与调查、核反恐等研究和实践中的应用。

关键词: 锕系核素, 化学分离技术, 测量技术, 辐射防护应用

Abstract: Rapid and sensitive methods for analysis of low level actinides in complicated sample matrices are very much needed. Depending on sample types and chemical properties of actinides, different analytical methods have been developed. In this paper, sensitive, accurate and rapid methods for analysis of actinides in environmental and biological samples are reviewed. Various radiochemical separation techniques for sample preparation, including sample dissolution, preconcentration, purification, and preparation of counting source, are summarized and compared. Details about sample pre-treatment, selection of radiotracer, radiochemical separation and purification methods (e.g., co-precipitation, solvent extraction, column chromatographic separation) are also discussed. Rapid batch processing methods with short turnaround time and high sample analysis throughput are emphasized. In addition, the state of the art analytical techniques for low level measurement of actinides in environmental and biological samples, including radiometric(α spectrometry and liquid scintillation counting) and mass spectrometric analysis (ICP-MS, TIMS and AMS), have been reviewed. The major applications in radiation protection and related fields are covered, with particular focuses on personnel monitoring for internal dosimetry, environmental radioactivity monitoring, environmental tracing, radiological and nuclear emergency and nuclear forensicanalysis.

Key words: Actinides, Radiochemical separation, Radioactivity measurement, Radiationprotection application

中图分类号:

TL818⁺.5

邬洋, 邢闪, 戴雄新. 环境样品中锕系核素的快速分析方法及辐射防护应用[J]. 辐射防护通讯, 2018, 38(5): 1-11.

Wu Yang, Xing Shan, Dai Xiongxin. Rapid Methods for Analysis of Actinides in Environmental Samples and Their Applications in Radiation Protection[J]. RADIATION PROTECTION BULLETIN, 2018, 38(5): 1-11.

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