Time of flight mass spectrometry method and apparatus

Details Time of flight mass spectrometry method and apparatus Time of flight mass spectrometry method and apparatus

2011-07-12

2011-07-12

Kim, Robert (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S281000, C250S286000, C250S287000, C702S022000, C702S023000, C702S027000, C702S028000, C702S031000, C702S032000

Reexamination Certificate

active

07977626

ABSTRACT:
A method and apparatus for performing time of flight mass spectrometry wherein the number of sums of transients taken for generating a given spectra is determined as a function of a characteristic of the incoming data for that spectrum. For instance, the number of transient measurements taken for a given spectrum output can be determined as a function of the abundance of ions in the sample or the abundance of ions corresponding to a base peak or another selected peak. In yet another embodiment, the collection of transients is terminated when a threshold signal to noise ratio is attained.

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