C₅F₁₀O has the potential to replace SF₆ as an insulation gas in switchgears due to its high breakdown field strength and low global warming potential. However, as a newly synthesized gas, the chemical characteristics of C₅F₁₀O are not well known. In particular, the discharge products of C₅F₁₀O are not clear, which limits its insulating capability evaluation in long-term use, and further hinders the development of a gas sensor to monitor the insulation deterioration of C₅F₁₀O-containing switchgears. In this paper, electron attachment mass spectrometry (MS) was proposed to detect the decomposed products of C₅F₁₀O under pulsed spark discharge condition. It was found that the ionization source of the MS had an optimal electron energy of 2 eV to avoid decomposing the gas molecules to be detected while having a high detection sensitivity. The detected discharge products mainly included CF₄, C₂F₄, C₃F₆, C₃HF₅, C₃F₈, C₃HF₇, C₄F₁₀, C₅F₁₀, C₆F₁₂, C₃F₄O and C₂F₆O, while CF₄, C₃HF₅, C₃HF₇, C₅F₁₀, C₆F₁₂, C₃F₄O and C₂F₆O were not detected using GCMS. Based on the nonionization measurement, the decomposition mechanism was deduced. Also, it was found that the densities of some products, such as C₃F₆, C₃F₈, C₄F₁₀ were increasing with the discharge voltage and the number of discharge pulses, implying that these species might be used as indicators for the discharge accumulation effects such as the insulation deterioration of switchgears.

由于 C ₅ F ₁₀ O 具有高击穿场强和低全球变暖潜势，因此有可能取代 SF ₆作为开关设备中的绝缘气体。然而，作为一种新合成的气体，C ₅ F ₁₀ O的化学特性尚不清楚。尤其是C ₅ F ₁₀ O的放电产物不清楚，限制了其长期使用中的绝缘能力评价，进一步阻碍了气体传感器的发展以监测含C ₅ F ₁₀ O的绝缘劣化开关设备。本文提出了电子吸附质谱法 (MS) 来检测 C 的分解产物。₅ F ₁₀ O 在脉冲火花放电条件下。发现MS的电离源具有2eV的最佳电子能量，以避免分解待测气体分子，同时具有较高的检测灵敏度。检测出的放电产物主要有CF ₄、C ₂ F ₄、C ₃ F ₆、C ₃ HF ₅、C ₃ F ₈、C ₃ HF ₇、C ₄ F ₁₀、C ₅ F ₁₀、C ₆ F ₁₂、C ₃F ₄ O 和 C ₂ F ₆ O，而使用 GCMS 未检测到CF ₄、C ₃ HF ₅、C ₃ HF ₇、C ₅ F ₁₀、C ₆ F ₁₂、C ₃ F ₄ O 和 C ₂ F ₆ O . 基于非电离测量，推导出分解机理。此外，还发现一些产品的密度，如 C ₃ F ₆、C ₃ F ₈、C ₄ F ₁₀ 随放电电压和放电脉冲数的增加而增加，这意味着这些物种可能被用作放电累积效应的指标，例如开关设备的绝缘劣化。