| 摘要 |
<p>[Object] To provide a liquid chromatograph mass spectrometer wherein the ionization unit and the power supply are automatically connected to each other when the ionization chamber is put into the analysis position and the ionization unit and the power supply are automatically disconnected from each other when the ionization chamber is put into the maintenance position. [Means for Achieving Object] An ionization chamber side voltage contact point 80 is formed so as to protrude form the compartment 110 in the ionization chamber 100, a mass spectrometric unit side voltage contact point 92 is formed in the hole 91 created in the housing 90 of the mass spectrometric unit 50, and a predetermined distance is provided between the inner periphery of the hole 91 and the outer periphery of the mass spectrometric unit side voltage contact point 92 in the structure, which allows the ionization chamber side voltage contact point 80 to be inserted into the hole 91 so to be connected to the mass spectrometric unit side voltage contact point 92 when the ionization chamber 100 is in the analysis position and allows the ionization chamber side voltage contact point 80 to be pulled out from the hole 91 so as to be disconnected from the mass spectrometric unit side voltage contact point 92 the ionization chamber 100 is in the maintenance position.</p> |
