| 2,6-二甲基吡啶萃取-液闪法测定后处理厂中的~(99)Tc |
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| 引用本文： | 鹿东峰,陈亚军,杨松涛,陈强. 2,6-二甲基吡啶萃取-液闪法测定后处理厂中的~(99)Tc[J]. 核化学与放射化学, 2015, 37(4): 225-230. DOI: 10.7538/hhx.2015.37.04.0225 |
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| 作者姓名： | 鹿东峰 陈亚军 杨松涛 陈强 |
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| 作者单位： | 中核四〇四有限公司 第三分公司，甘肃 兰州732850 |
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| 摘 要： | 研究了2,6-二甲基吡啶萃取分离-液体闪烁法测定后处理厂工艺料液中99 Tc的分析方法。进行了铀、镎、钚、裂片元素对99 Tc测定的干扰与消除实验,对分离条件、液闪测量条件进行了优化。在选定条件下对模拟样品进行分析,精密度(sr)优于5%(n=6),99 Tc回收率为95%~105%。
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| 关 键 词： | 2 6-二甲基吡啶萃取 液体闪烁计数法 99Tc |
Determination of 99Tc in the Reprocessing Plant by Liquid Scintillation Counting Method Through Extraction of 2, 6-Dimethly Pyridine |
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| LU Dong-feng,CHEN Ya-jun,YANG Song-tao,CHEN Qiang. Determination of 99Tc in the Reprocessing Plant by Liquid Scintillation Counting Method Through Extraction of 2, 6-Dimethly Pyridine[J]. Journal of Nuclear and Radiochemistry, 2015, 37(4): 225-230. DOI: 10.7538/hhx.2015.37.04.0225 |
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| Authors: | LU Dong-feng CHEN Ya-jun YANG Song-tao CHEN Qiang |
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| Affiliation: | The Third Filial Company of the 404 Company Ltd, China National Nuclear Corporation, Lanzhou 732850, China |
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| Abstract: | An analysis method by extraction and separation of 2, 6-dimethly pyridine by liquid scintillation counting method is researched for the determination of 99Tc in the process feed in the reprocessing plant. Examination of disturbance and dispelling to determine 99Tc is done by using uranium, neptunium, plutonium and fission product, and separation condition and liquid scintillation counting condition are optimized. Simulated samples are analyzed under determined conditions. The results show that sr is better than 5%（n=6）, and recovery rate of 99Tc is between 95% and 105%. |
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| Keywords: | 2 6-dimethly pyridine extraction liquid scintillation counting 99 |
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