Definition of Ion-trap mass spectrometry

1. The ion-trap mass spectrometer uses three electrodes to trap ions in a small volume. The advantages of the ion-trap mass spectrometer include compact size and the ability to trap and accumulate ions to increase the signal-to-noise ratio of a measurement. Instrumentation

   The mass analyzer consists of a ring electrode separating two hemispherical electrodes. A mass spectrum is obtained by changing the electrode voltages to eject the ions from the trap. Related topics:

   • Mass spectrometry (Intro)
   • Ionization methods
   • Ion detectors