| 微波消解法快速测定气溶胶中~(210)Po |
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| 引用本文： | 祝小惠,於国兵,闻德运,谭华艳,徐榭,陈志.微波消解法快速测定气溶胶中~(210)Po[J].核电子学与探测技术,2016(2):201-204. |
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| 作者姓名： | 祝小惠 於国兵 闻德运 谭华艳 徐榭 陈志 |
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| 作者单位： | 1. 中国科学技术大学核科学技术学院,合肥,230000;2. 安徽省辐射环境监督站,合肥,230000 |
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| 基金项目： | 国家自然科学基金(11375182)，安徽省环保科研课题(2014－011)，环保部2016核与辐射安全监管项目－全国辐射环境监测(安徽)资助。 |
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| 摘 要： | 作为氡衰变的长寿命子体的~(210)Po是具有α衰变的极毒性且挥发性较强的核素,容易吸附在气溶胶中,随呼吸进入人体从而造成内照射,危害人体健康,深受研究者的关注。本文将微波消解法用于测定气溶胶中~(210)Po的活度浓度,结果表明:微波消解方法获得的结果比传统方法高9%~36%,而且测量时间由传统方法的8天缩减为2天,并可同时处理更多的样品数量。相比于传统方法,大大加快了样品处理的速度,降低了损失率。
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| 关 键 词： | 微波消解 气溶胶 210 Po α能谱法 |
A fast Determination Method of Polonium-210 in Atmospheric Aerosol with Microwave Digestion |
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| Abstract: | Polonium-210 , as the long-life progeny of radon decay , is a kind of highly toxic and volatile nu-clide with strong alpha decay which can be easily adsorbed in aerosol .If breathed into the human body , internal exposure will be caused to endanger human body health which attracts many researchers 'attention.In this pa-per, a method using the microwave digestion technology to measure 210 Po in atmospheric aerosol was presented . The results showed that 210 Po in atmospheric aerosol was digested more sufficiently using the microwave system . Dissolution rate was increased by 8%~36% depending on the radioactivity concentration .The experimental period decreased from 8 days to 2 days.Compared with the existing methodology , we could handle more sam-ples at the same time .The method greatly increased the speed of the sample processing and reduced the loss rate. |
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| Keywords: | microwave digestion atmospheric aerosol polonium-210 alpha-particle spectrometry |
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