| 摘要 |
A mass spectrometer and control method which achieves high-speed scanning while maintaining relatively high sensitivity. The mass spectrometer (1) has: an ion source (2); a collisional cell (40) for performing a storing operation for storing at least some of the ions (2) and then performing an ejecting operation for ejecting the stored ions; a second mass analyzer (50) for selecting desired ions; a detector (60) for detecting the desired ions; analog signal processing circuitry (80) for converting a signal from the detector (60) into a voltage; and an A/D converter (90) for sampling and converting the output voltage into a digital signal. Signals delivered from the analog signal processing circuitry (80) in response to two pulsed ions produced by two successive ejecting operations of the collisional cell (40) are at least partially overlapped temporally. |
