Tandem time-of-flight mass spectrometer

Details Tandem time-of-flight mass spectrometer Tandem time-of-flight mass spectrometer

1991-05-16

1993-04-13

Hannaher, Constantine

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

250281, 250282, 250286, H01J 4940

Patent

active

052025632

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.

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The invention disclosed herein was supported at least in part by funds received from the National Institutes of Health under Grant No. NIH: R01 GM-33967. Accordingly, the Government may have certain rights in this invention.

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