Method of adjusting the quadrupole mass spectrometer and a quadrupole mass spectrometer

摘要

In the former quadrupole die mass spectrometry device, the quadruplex polar plasm quantitative filter where high frequency voltage is impressed from (2) radiant noise jumped in the ion detector (3), was necessary the detector (5) to configurate the threshold voltage with of the discriminator (52) largely with that. Vis-a-vis that, with this invention, amplitude was made the respective adjustment possible configuration in the high frequency voltage generation section (41 and 44) which generates the high frequency voltage which in the rod electrode (21 - 24) is impressed. By the fact that as needed adjusting the amplitude of high frequency voltage of converse phase mutually, radiant noise of two high frequency voltage origins which jump in the ion detector (3) that can try exactly, it is possible to decrease the high frequency noise which appears in the output signal of ion detector 3 to deny. With that, it is possible, holds down applied voltage to the ion detector (3) and the said detector (3) can extend life to make the threshold voltage with of the discriminator (52) small.