供测量比对用土壤放射性样品的制备和应用

摘要/Abstract

摘要： 介绍了可供测量比对用的环境放射性模拟土壤样品及氚分析土壤样品的制备以及实验室比对结果。模拟土壤基质的化学成分为:SiO₂、Al₂O₃、Fe₂O₃、MgO、CaO、NaCl、KCl、TiO₂,掺合后基质经过研磨、干燥、过筛,加入放射性核素后充分混匀,按照GB 15000.5—1994的要求对模拟样品进行均匀性检验,未发现样品之间有显著性差异。³H分析样品为含水率15%的掺标自然土壤。8家实验室参加了该样品的相关比对活动,结果显示所研制的模拟土壤能够满足实验室间样品测量比对的要求。

关键词: 模拟土壤, 制备, 比对, 环境, 放射性

Abstract: This article summarized the preparation process and intercomparison results of the simulated environmentalradioactive soil samples. The components of the matrix were:SiO₂, Al₂O₃, Fe₂O₃, MgO, CaO, NaCl, KCl and TiO₂. All of the components were milled, oven-dried, sieved and then blended together. The homogeneity test was according to GB 15000.5—1994, and no significant differences were observed. The ³H analysis soils were spiked natural soils with the moisture content of 15%. Eight laboratories attended this intercomparison. The results proves that the preparation of the simulated soils were suitable for the inter-laboratories comparison.

Key words: simulated soil, intercomparison, environment, radioactive

中图分类号:

X830

高泽全, 李周, 李鹏翔, 王瑞俊, 任晓娜. 供测量比对用土壤放射性样品的制备和应用[J]. 辐射防护, 2014, 34(1): 33-37.

Gao Zequan, Li Zhou, Li Pengxiang, Wang Ruijun, Ren Xiaona. Preparation and Application of Radioactive Soil Samples for Intercomparison[J]. RADIATION PROTECTION, 2014, 34(1): 33-37.

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