| 田青,吉艳琴,尹亮亮,黄薇,邵宪章,申宝鸣.核电站周边地表水中铀的同位素丰度分析[J].中华放射医学与防护杂志,2013,33(1):72-75 |
| 核电站周边地表水中铀的同位素丰度分析 |
| Determination by ICP-MS of uranium isotopic ratios in drinking water in the vicinity of nuclear power plants |
| 投稿时间：2012-04-09 |
| DOI：10.3760/cma.j.issn.0254-5098.2013.01.020 |
| 中文关键词: 铀 电感耦合等离子体质谱 同位素比值 地表水 |
| 英文关键词:Uranium Inductively coupled plasma mass spectrometry Isotope ratios Surface water |
| 基金项目:卫生行业科研专项(201002009) |
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| 中文摘要: |
| 目的 掌握核电站周边地区地表水中铀同位素丰度比值基线数据。方法 采集江苏、山东、浙江省境内3个核电站周边地区供饮用的地表水,利用磷酸三丁酯(TBP)萃淋树脂分离富集铀,电感耦合等离子体质谱(ICP-MS)法分析样品中的234U/238U与235U/238U的丰度比。结果 地表水中234U/238U丰度比范围为4.575×10-5～7.752×10-5,235U/238U丰度比范围为7.273×10-3～7.639×10-3。结论 地表水中234U被不同程度地富集。 |
| 英文摘要: |
| Objective To ascertain the uranium isotopic ratios in surface water samples around nuclear power plants. Methods Water samples were collected in Jiangsu, Shandong and Zhejiang provinces. An efficient separation procedure for the trace uranium concentrated from surface water by tributyl phosphate (TBP) was used. Inductively coupled plasma mass spectrometry (ICP-MS) was applied to determination of low abundance uranium isotopes. Results The 234U/238U isotope ratio varied from 4.575×10-5 to 7.752×10-5 and 235U/238U from 7.273×10-3 to 7.639×10-3. Conclusions The 234U is enriched in the surface water. |
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