| 摘要 |
An ionization device includes a laser light irradiation unit, a liquid holding unit having an end portion thereof and being configured to hold a liquid on an outer periphery of the end portion, an extract electrode, and a voltage application unit. The device is configured to operate in at least in two operation modes, and the modes include a first operation mode, in which the liquid at the end portion is brought into contact with the surface of the sample and then ionized particles are generated from the end portion, and a second operation mode, in which the liquid at the end portion is disposed at a location separated from the surface of the sample and the particles desorbed from the surface of the sample as a result of being irradiated with the laser light are ionized using the liquid on the end portion. |
