Continuous operation high speed ion trap mass spectrometer

摘要

The present disclosure discusses a system and method for continuous operation of an ion trap mass spectrometer. The described system does not introduce ions into the ion trap in distinct trapping phase, rather the described system continuously injects ions into the ion trap while continuously scanning out the ions. The system and method described herein achieves a much higher duty cycle and cycle rate when compared to standard mass spectrometer devices.

主权项

1. A mass spectrometer comprising:
an ion trap configured to continuously receive ions; an ion source configured to continuously inject the ions to the ion trap; an ion detector configured to detection ions when the ions are ejected from the ion trap; and a controller configured to cause a repeated frequency-scanned voltage signal to be applied to the ion trap during the continuous injection of the ions into the ion trap, the controller configured to alternate between holding the repeated frequency-scanned voltage signal at a first frequency for a first predetermined amount of time and scanning from the first frequency to a second frequency over a second predetermined amount of time, the scanning of the repeated frequency-scanned voltage signal from the first frequency to the second frequency, causing the ejection of the ions from the ion trap.