Mass spectrometer and mass spectrometry

摘要

A mass spectrometer featured in including an ion source including a first electrode 112, 113, a second electrode 112, 113, and a dielectric unit 111 having a sample introducing unit and a sample discharging unit and provided between the first electrode 112, 113 and the second electrode 112, 113, a power source 115 of ionizing a sample 101 by a discharge generated between the first electrode 112, 113 and the second electrode 112, 113 by applying an alternating current voltage to either one of the first electrode 112, 113 and the second electrode 112, 113, a mass spectrometry unit of analyzing an ion discharged from the sample discharging unit, and a light irradiating unit 116 of irradiating an area of generating the discharge with light.