【摘要】 使用高灵敏度的脉冲氦离子化检测器(PDHID)气相色谱法对Kr、Xe浓度进行定量分析,并通过采用反应床除去杂质气体或与Kr、Xe难以分离的干扰组分N2、CH4和CO等,可使最低检测限达到Kr为7.931×10-8、Xe为7.186×10-8.对Kr的测量相对偏差在2%以内,对Xe的测量相对偏差在6%以内.更多还原

【Abstract】 The concentration of Kr and Xe has been determined by a gas chromatography analysis method.Sponge Ti is used to eliminate the components such as nitrogen and carbon monoxide which are difficult to separate from Kr and Xe.Using the pulse discharge helium ionization detector(PDHID) with high sensitivity,the detection limit of Kr is 7.931×10-8,and of Xe is 7.186×10-8.The relative error of Kr is less than 2%,of Xe,is less than 6%.更多还原