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本发明公开了一种SF6分解产物的氦离子色谱分析方法,采用包括一根硅胶柱、一根第一Porapak Q柱、一根第二Porapak Q柱以及一根Gaspro毛细柱的4根色谱柱联用对样品进行组分分离,采用包括第1阀、第2阀、第3阀、第4阀在内的4个阀进行切割组分分离控制,采用第一PDD检测器和第二PDD检测器对分离后的样品分别进行分析测试。本发明分析方法能够同时准确检测传统分析方法不能准确检测的SF6分解产物,如H2,O2,N2,CO,CH4,CO2,COS,H2S,SOF2,CS2等化合物,通过全面准确的对SF6分解产物进行分析,从而准确判断SF6气体绝缘设备内部运行情况,保障电气设备安全运行。
The present invention discloses a helium ion chromatographic method for analyzing SF6 decomposition products by using four chromatography columns including a silica gel column, a first Porapak Q column, a second Porapak Q column, and a Gaspro capillary column The sample was subjected to fractional separation using four valves including a first valve, a second valve, a third valve, and a fourth valve to control the separation of the cut components. The first PDD detector and the second PDD detector The isolated samples were analyzed separately. The analysis method of the invention can simultaneously and accurately detect the SF6 decomposition products such as H2, O2, N2, CO, CH4, CO2, COS, H2S, SOF2 and CS2 which can not be accurately detected by the traditional analysis methods, and comprehensively and accurately detect SF6 decomposition products Analysis, so as to accurately determine the internal operation of SF6 gas insulated equipment to ensure the safe operation of electrical equipment.