以1∶1模拟了中国CEFR堆所需要建造的快堆气体回路,建立了一个工程上可行的、远距离的、多条固定管线和阀门的快堆覆盖气体氩气取样系统、计算机控制的阀门进样以及氩气中氮杂质的间断性在线分析方法。通过使用气相色谱仪热导检测器,其检测限达到了ASTM标准中提出的利用气相色谱仪分析氩气中氮杂质的标准,也满足了CEFR堆规定的氩气中氮杂质的分析要求。 A 1: 1 simulation of the fast reactor gas circuit to be constructed in China’s CEFR reactor has resulted in the establishment of an engineering-ready, long-distance, fast reactor-covered gas argon sampling system with multiple fixed lines and valves. The computer-controlled valve Injection and intermittent on-line analysis of nitrogen impurities in argon. By using a gas chromatograph thermal conductivity detector, the limit of detection has reached the standard set forth in the ASTM standard for the analysis of nitrogen impurities in argon using the gas chromatograph, and also meets the analytical requirements for nitrogen impurities in argon defined by the CEFR reactor.