All-component high-sensitivity online detection mass spectrometer for stink and harmful waste gas peculiar smell

The invention provides an all-component high-sensitivity online detection mass spectrometer for stink and harmful waste gas peculiar smell, which comprises a low-vacuum ionization area, a reaction area, an ion transmission area and a mass analysis area, the reaction area enables stink and harmful waste gas and peculiar smell gas samples to be in contact with components such as high-energy electrons and metastable-state He generated by low-pressure plasmas, and ionized to generate charged ions, and the ion transmission area focuses and transmits generated ion beams to a post-stage mass spectrum mass analyzer; the mass analysis area is used for sequentially separating ions with different mass numbers according to different mass-to-charge ratios to finish sample analysis and detection. The device improves the substance ionization efficiency based on the low-pressure plasma ionization source, is combined with the low-pressure ion transmission system and the mass spectrum mass analyzer, is reasonable in design, co