Mass Spectrometer

摘要

The objective of the present invention is to improve the robustness, sensitivity, and maintainability of a mass spectrometer to which a liquid chromatograph can be connected. This mass spectrometer includes: an ion source; a mass spectrometry unit; a plurality of flat plates used as electrodes having openings through which ions can be introduced to the mass spectrometer from an orthogonal direction along an ion introduction axis; a porous member provided between the mass spectrometry unit and the plurality of flat plates; and a mechanism for feeding gas to the plurality of flat plates for the side opposite from the ion introduction direction; the plurality of flat plates being disposed under atmospheric pressure, and the plurality of electrodes being set at a temperature higher than room temperature.

主权项

1. A mass spectrometer, comprising:
an ion source; a mass spectrometry unit; a plurality of flat plates which function as electrodes having openings through which ions are introduced in a direction orthogonal to an ion introduction axis for the mass spectrometer; a porous member which is provided between the mass spectrometry unit and the plurality of flat plates; and a mechanism which flows gas to the plurality of flat plates for the side opposite to the ion introduction direction, wherein the plurality of flat plates are disposed under atmospheric pressure and temperatures of the plurality of electrodes are set to temperatures higher than a room temperature.