Radiant energy – Ionic separation or analysis – Methods
Reexamination Certificate
2011-02-01
2011-02-01
Souw, Bernard E (Department: 2881)
Radiant energy
Ionic separation or analysis
Methods
C250S281000, C250S283000, C250S288000, C250S290000
Reexamination Certificate
active
07880136
ABSTRACT:
This invention relates to mass spectrometry that includes ion trapping in at least one of the stages of mass analysis. In particular, although not exclusively, this invention relates to tandem mass spectrometry where precursor ions and fragment ions are analysed. A method of mass spectrometry is provided comprising the sequential steps of: accumulating in an ion store a sample of one type of ions to be analysed; accumulating in the ion store a sample of another type of ions to be analysed; and mass analysing the combined samples of the ions; wherein the method comprises accumulating the sample of the one type of ions and/or the sample of another type of ions to achieve a target number of ions based on the results of a previous measurement of the respective type of ions.
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Horning Stevan Roy
Lange Oliver
Makarov Alexander Alekseevich
Katz Charles B.
Maskell Michael
Souw Bernard E
Thermo Finnigan LLC
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