微气相色谱法快速分析氘中杂质气体  

Rapid analysis of impurities in deuterium by micro gas chromatography

作　　者：刘振兴 杨洪广[2] 赵崴巍[2] 杨丽玲[2] LIU Zhenxing;YANG Hongguang;ZHAO Weiwei;YANG Liling(Anhui CNNC Tongyuan Technology Co.,Ltd.,Anqing 231400;China Institute of Atomic Energy,Beijing 102413)

机构地区：[1]安徽中核桐源科技有限公司,安庆231400 [2]中国原子能科学研究院,北京102413

出　　处：《分析试验室》2021年第10期1171-1174,共4页Chinese Journal of Analysis Laboratory

基　　金：国家磁约束核聚变能研究专项(2017YFE0300300、2014GB111003)资助。

摘　　要：采用INFICON 3000微型气相色谱仪,建立了一种测定聚变堆燃料气氘(D2)中Ar,N2,CH4,CO,CO2气体杂质含量的方法。研究了微气相色谱的柱温、柱头压、进样时间等因素对D2中气体杂质分析的影响。结果表明,通过微色谱分析条件优化,最佳实验条件下,D2中杂质气体均能在76.0 s内全部出峰,各组分气体分离度大于1.5,相对标准偏差小于1.0%,各组分检测限均小于7.0μL/L。该方法能实现对D2中各种杂质组分的快速完全分离和准确定量检测,能满足聚变堆氘氚燃料循环系统对气体杂质快速定量分析的要求。A quantitative analysis method was established for detecting Ar,N2,CH4,CO and CO2 in fuel gas deuterium of fusion reactor by the INFICON 3000 micro gas chromatography. We studied the effects of column temperature,pressure and injection time to the analysis of the impurities in deuterium. The chromatographic conditions were optimized. The results indicated the retention time of all the impurities in D2 was less than76. 0 s,the resolution of each component was larger than 1. 5 with the relative standard deviation( RSD) less than 1. 0%,and the detection limit of each component was less than 7. 0 μL/L. The method can quickly realize the separation and accurate quantitative analysis of the impurities in deuterium, and meet the analysis requirements of impurity in gas of deuterium and tritium fuel in fusion reactor.

关 键 词：聚变堆 微气相色谱 气体杂质 定量分析 

分 类 号：O657.7[理学—分析化学] X832[理学—化学]