A Method of Operation for the Quadrupole Ion Trap in the Resonance Ejection Mode with Linear Dependence of the mlz Ratio of Ejected Ions upon the Trapping RF Voltage

A method for producing precise linear mass calibration and accurate mass measurements in the resonance ejection mode of an ion trap mass spectrometer using modulation of the endcap voltage amplitude proportional to the amplitude of the fundamental RF frequency.

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