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Journal of Tsinghua University(Science and Technology)    2020, Vol. 60 Issue (4) : 341-347     DOI: 10.16511/j.cnki.qhdxxb.2019.26.047
PHYSICS AND ENGINEERING MECHANICS |
Degassing membrane for 14C detection in water
HE Jingtao1, LIANG Manchun1, CHEN Anying1, YUE Feng2, HE Shuijun1
1. Institute of Public Safety Research, Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
2. Nuclear and Radiation Safety Center, Ministry of Ecology andEnvironment of the People's Republic of China, Beijing 100010, China
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Abstract  Current methods for detecting 14C in water are very slow and use large amounts of nitrogen. This study used a degassing membrane to improve the 14C detection in water. A 14C water separation device built using the degassing membrane was evaluated experimentally for acidic conditions to evaluate the effects of various factors on the nitrogen consumption and time. The experimental results show that the 14C separation in water using the degassing membrane has a 95% inorganic carbon recovery rate with short operating times and less nitrogen consumption.
Keywords radionuclide analysis      degassing membrane technology      14C detection     
Issue Date: 03 April 2020
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HE Jingtao
LIANG Manchun
CHEN Anying
YUE Feng
HE Shuijun
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HE Jingtao,LIANG Manchun,CHEN Anying, et al. Degassing membrane for 14C detection in water[J]. Journal of Tsinghua University(Science and Technology), 2020, 60(4): 341-347.
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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2019.26.047     OR     http://jst.tsinghuajournals.com/EN/Y2020/V60/I4/341
  
  
  
  
  
  
  
  
  
  
  
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