Rapid determination of plutonium in water samples using vacuum box system separation and low background liquid scintillation counter measurement
Rapid determination of plutonium in water samples using vacuum box system separation and low background liquid scintillation counter measurement
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DOI：
10.1039/c5ay02232k
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发表时间：
2015-11
影响因子：
3.1
通讯作者：
Bo Liu;K. Shi;Gaoyang Ye;Yaming Li;Wang-suo Wu
中科院分区：
文献类型：
--
作者：
Bo Liu;K. Shi;Gaoyang Ye;Yaming Li;Wang-suo Wu
建立了快速测定环境水样中239+240钚的分析方法。在真空箱系统中使用阴离子交换色谱柱将钚与基质和干扰元素分离。优化条件下，5 L水样钚的化学收率优于90%，铀、钍、镅的去污因子在103~104之间。通过使用低背景液体闪烁计数（LSC）检测239+240钚的α衰变来测量钚的浓度。水样中钚的分析结果与常规方法所得值吻合较好，表明该方法可靠，可用于环境水样中低含量钚的分析。
An analytical method for rapid determination of 239+240plutonium in environmental water samples was developed. The separation of plutonium from matrices and interfering elements was performed using anion exchange chromatographic columns in a vacuum box system. Under the optimized conditions, the chemical yield of plutonium is better than 90% and the decontamination factors for uranium, thorium and americium ranged from 103 to 104 for 5 L water samples. The concentration of plutonium was measured by detecting the α decay of 239+240plutonium using low background liquid scintillation counting (LSC). The analytical results of the plutonium in water samples were in good agreement with the values obtained by the conventional method, indicating that the proposed method is reliable and can be used for low level plutonium analysis in environmental water samples.