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含氟里昂-11的放射性废气中往往需要测定~(85)Kr,现将气相色谱分析方法报导如下。在分离回收放射性废气~(85)Kr 的工艺中,美国橡树岭研究所进行了氟利昂吸收的先进流程试验。流程模拟试验时采用~(84)Kr 气体。此时各试验塔进出口的气、液相组分,由于取样、分离分析和Kr 的最低检测浓度的降低都较困难,致使模拟试验水平较难提高。文献报导,将叁柱分成两组,用自动切换法分别测定CCl_2F_2(氟里昂-12)和O_2、N_2、Kr_o 为提高Kr 的检测灵敏度,文章又提出用一个远距离反压控制器,使样品压力从大气压增加到几公斤。其他,还可用钯银
Freon-11 radioactive waste gas emissions often need to determine the ~ (85) Kr, gas chromatography now reported as follows. In the separation and recovery of radioactive waste gas ~ (85) Kr process, the United States Oak Ridge Institute conducted an advanced flow test Freon absorption. Flow simulation test using ~ (84) Kr gas. In this case, the gas and liquid components at the inlet and outlet of each test tower are more difficult to be sampled due to the separation and analysis and the lowest detection concentration of Kr, which makes it more difficult to improve the simulation test level. Reported in the literature, the three columns are divided into two groups, with automatic switching method were measured CCl_2F_2 (Freon -12) and O_2, N_2, Kr_o to improve the detection sensitivity of Kr, the article also proposed a long-range back pressure controller, the sample Pressure increased from atmospheric pressure to a few kilos. Other, but also available palladium silver