Abstract
We describe a new mass selective ejection method from a linear ion trap, which we call axial resonant excitation (AREX). A set of vane lenses are inserted between each quadrupole rod to produce electrostatic potential that is approximately harmonic along the central axis of the quadrupole field. After ions with specific m/z are resonantly oscillated in the axial direction, the ions are mass selectively ejected in the axial direction. At a high scan rate of 11 Th/ms, AREX achieved a high ejection efficiency of more than 60%, which is more than three times higher than a conventional mass selective axial ejection method from a linear trap using fringing field.
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Published online March 9, 2006
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Hashimoto, Y., Hasegawa, H., Baba, T. et al. Mass selective ejection by axial resonant excitation from a linear ion trap. The official journal of The American Society for Mass Spectrometry 17, 685–690 (2006). https://doi.org/10.1016/j.jasms.2006.01.011
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DOI: https://doi.org/10.1016/j.jasms.2006.01.011