辐射防护 ›› 2015, Vol. 35 ›› Issue (6): 351-355.

• 论文报告 • 上一篇    下一篇

水中氚的电解浓集装置设计

潘竞舜, 李加兴, 文富平, 陈凌   

  1. 中国原子能科学研究院,北京 102413
  • 收稿日期:2014-05-22 出版日期:2015-11-20 发布日期:2024-10-22
  • 作者简介:潘竞舜(1970—),男, 1995年毕业于兰州大学现代物理系放射化学专业,研究员级高级工程师。E-mail:jingshunpan@163.com

An electrolytic enrichment instrument for the determination of tritium in water samples

Pan Jingshun, Li Jiaxing, Wen Fuing, Chen Ling   

  1. China Institute of Atomic Energy, Beijing 102413
  • Received:2014-05-22 Online:2015-11-20 Published:2024-10-22

摘要: 建立了一套水中氚的电解浓集装置,一次可以电解12个样品。水样初始体积为250 mL,电解后的体积是8 mL。每个电解槽的电压3.0±0.2 V,电流12±1 A,电解后样品中氚的浓缩倍数为20±0.5倍,完成电解总共需要72 h。用Quantulus 1220 液体闪烁谱仪测量,仪器本底1.0 cpm,测量时间600 min时,最低探测限可达0.12 Bq/L。

关键词: 氚, 电解浓集, 液闪测量

Abstract: This work established an electrolytic enrichment instrument for the determination of tritium in water. Twelve samples are electrolyzed for one time. The initial volume of water sample is 250 mL; the final volume after electrolysis is 8 mL. Electrolysis voltage is 3.0±0.2 V for every electrolysis cell; the current is 12±1 A. After 72 hours of electrolysis, the concentration of tritium in the sample is concentrated by 20±0.5 times. The final sample measured with Quantulus 1220 liquid scintillation spectrometer, the minimum determination limit of tritium is 0.12 Bq/L.

Key words: tritium, electrolytic enrichment, liquid scintillation counting