Patent ID: 8410436
Filing Date: 2013-04-02
Classification: H01J

Abstract:
1. A quadrupole mass spectrometer comprising: a quadrupole mass filter for selectively allowing an ion having a specific mass to pass through; a detector for detecting the ion which has passed through the quadrupole mass filter, wherein the quadrupole mass spectrometer performs a scan measurement in which a cycle of scanning a mass of ions which pass through the quadrupole mass filter across a predetermined mass range is repeated or a measurement in which a cycle of sequentially setting a plurality of masses is repeated; a quadrupole driver for applying a predetermined voltage to each of electrodes composing the quadrupole mass filter; and a controller for controlling the quadrupole driver in such a manner as to change the voltage applied to each of the electrodes composing the quadrupole mass filter in accordance with a mass during the scan measurement or the measurement in which a cycle of sequentially setting a plurality of masses is repeated, while changing a waiting time from a termination of one cycle to an initiation of a subsequent cycle in accordance with a mass difference between an initiation mass and a termination mass in a cycle.