| abstract |
A tandem time-of-flight mass spectrometer comprises a grounded vacuum housing, two reflecting-type mass analyzers coupled via a collision chamber, and flight channels electrically floated with respect to the grounded vacuum housing. The first reflecting-type mass analyzer receives ionized molecules (ions). These ions pass through the flight channel of the first reflecting-type mass analyzer and are fragmented in the collision chamber. The fragmented ions pass through the flight channel of the second reflecting-type mass analyzer. Detectors disposed in the collision chamber and in the second reflecting-type mass analyzer detect the spectrum of the first reflecting-type mass analyzer and the spectra of the tandem time-of-flight mass analyzer, respectively. |