原子能科学技术2017，Vol.51Issue(4)：603-608,6.DOI:10.7538/yzk.2017.51.04.0603
氧化锆检测器在微量氢同位素色谱分析中的应用研究
Application Study of Zirconia Detector for Gas Chromatography Analysis of Trace Hydrogen Isotope
摘要
Abstract
The differences between the thermal conductivities of helium gas and hydrogen isotope gas are very small.Applying zirconia primary battery as the detector of gas chromatography and modified γ-Al2O3 as the filled column,the influencing factors of the measurement of hydrogen isotopes by zirconia detector were studied systemically at liquid nitrogen temperature (77 K).The separation test of trace hydrogen isotopes in the helium gas was also performed.The results show that the optimal working temperature of zirconia detector is about 700 ℃.Under the condition that the flow rate of the purge gas is 60 mL/min,the relative standard deviation of the instrument measurement is smaller than 1％,the detection limits of H2 and D2 are 15 ppm and 40 ppm,respectively,and the relative error is smaller than 5％.The above results indicate that zirconia detector can be used for the measurement of trace hydrogen isotopes in helium gas.关键词
氢同位素/氧化锆/色谱分析/氘氚燃料循环Key words
hydrogen isotope/zirconia/chromatography analysis/deuterium tuitium fuel cycle分类
化学化工引用本文复制引用
陈平,任兴碧,肖成建,曹大伟,冉光明,刘云怒,夏修龙,陈晓军,王和义..氧化锆检测器在微量氢同位素色谱分析中的应用研究[J].原子能科学技术,2017,51(4):603-608,6.基金项目
国家磁约束聚变能研究专项资助项目(2014GB11004) （2014GB11004）
