Development and application of a method for the determination of90Sr in environmental samples
Development and application of a method for the determination of90Sr in environmental samples
复制标题
环境样品中90Sr测定方法的建立及应用
DOI：
10.1007/bf02063624
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
I. Friberg
中科院分区：
文献类型：
--
作者：
I. Friberg
建立了一种测定环境样品中90sr可浸出量的方法，并将其应用于受化学贝沉降物污染的样品中。它包括以下主要步骤：(1)干燥和灰化，(2)浸出，(3)用HDEHP提取90y，(4)在有机相中进行90y的切伦科夫计数。该方法易于实施，并且通过对放射性测量的仔细评估，该方法是可靠的，实际检测限约为7 mBq可浸出90sr /g样品灰。
A method to determine the leachable content of90Sr in environmental samples has been developed and applied to samples contaminated by the Chemobyl fallout. It consists of the following main steps: (1) drying and ashing, (2) leaching, (3) extraction of90Y using HDEHP and (4) Cherenkov counting of90Y in the organic phase. The method is easy to carry out and with a careful evaluation of the radioactivity measurement, the method is reliable down to a practical detection limit of approximately 7 mBq leachable90Sr/g sample ash.