Radiant energy – Ionic separation or analysis – Ion beam pulsing means with detector synchronizing means
Patent
1996-05-06
1998-07-07
Nguyen, Kiet T.
Radiant energy
Ionic separation or analysis
Ion beam pulsing means with detector synchronizing means
250281, H01J 4940
Patent
active
057773254
ABSTRACT:
A laser desorption ionization instrument for and method of measuring the molecular weight of large organic molecules includes a time of flight mass spectrometer (TOF MS). The TOF MS instrument provides optimized optic design for both DC and TLF modes. The invention further provides dynamic resolution enhancement for a given ejection pulse, along with optimized ion ejection pulses relative to the ion optic elements. The invention also provides means for compensating for difference in total kinetic energy among ions of different mass; high resolution detection means for improved sensitivity for large molecular weight species. The invention further provides x-y-z stage for sample presentation of both standard MALDI and gel or membrane based samples.
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Anderson Tor C.
Donlon Edward P.
Kaplun Yevgeny
Li Liang
Russon Larry
Hewlett--Packard Company
Nguyen Kiet T.
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