Radiant energy – Ionic separation or analysis – With sample supply means
Reexamination Certificate
2008-02-05
2009-11-24
Wells, Nikita (Department: 2881)
Radiant energy
Ionic separation or analysis
With sample supply means
C250S286000, C250S281000, C250S282000, C250S42300F, C250S427000, C250S3960ML, C315S111810
Reexamination Certificate
active
07622713
ABSTRACT:
A method for operating a mass spectrometer includes determining a first performance characteristic while operating the mass spectrometer with a first electron emitter, storing first information relating to the first performance characteristic, determining a second performance characteristic while operating the mass spectrometer with a second electron emitter, storing second information relating to the second performance characteristic, and thereafter switching from operation using the first electron emitter to operation using the second electron emitter. The switching includes using the first and second information to normalize performance of the second electron emitter after the switching relative to performance of the first electron emitter before the switching.
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Guckenberger George B.
McCauley Edward B.
Quarmby Scott T.
Haynes & Boone LLP
Katz Charles B.
Thermo Finnigan LLC
Wells Nikita
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