| 摘要 |
Provided are a mass analysis device and a mass separation device which are each capable of repeatedly analyzing or extracting a plurality of ion species having different mass-to-charge ratios in a short time with less restriction on the design and performance of the device by problems arising from the principle of operation and with no limitation on the mass-to-charge ratio range that can be dealt with in principle. A mass analysis device (10) is configured from an ion source (1), an ion introduction unit (2), a mass separation unit (3), an ion detection unit (4), and the like. An ion group is introduced into a separation space (5) at a predetermined acceleration voltage as a pulse synchronized with the phase of a one-dimensional high-frequency electric field. In the separation space (5), ions fly by inertia in an incidence direction, and are displaced in a y-direction by force received from the one-dimensional high-frequency electric field that acts in the direction (y-direction) crossing the incidence direction. Ion species having different mass-to-charge ratios from each other are separated by the difference in displacement amount. At this time, the acceleration voltage and the period of the one-dimensional high-frequency electric field are set such that an ion species to be measured is emitted from the separation space (5) after being subjected to the action of the electric field for one period. |
