Radiant energy – Ionic separation or analysis – With sample supply means
Reexamination Certificate
2008-07-29
2008-07-29
Berman, Jack I. (Department: 2881)
Radiant energy
Ionic separation or analysis
With sample supply means
C250S284000, C250S286000, C250S287000, C250S281000
Reexamination Certificate
active
07405398
ABSTRACT:
A mass spectrometer interface, having improved sensitivity and reduced chemical background, is disclosed. The mass spectrometer interface provides improved desolvation, chemical selectivity and ion transport. A flow of partially solvated ions is transported along a tortuous path into a region of disturbance of flow, where ions and neutral molecules collide and mix. Thermal energy is applied to the region of disturbance to promote liberation of at least some of the ionized particles from any attached impurities, thereby increasing the concentration of the ionized particles having the characteristic m/z ratios in the flow. Molecular reactions and low pressure ionization methods can also be performed for selective removal or enhancement of particular ions.
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Cousins Lisa
Javahery Gholamreza
Jolliffe Charles
Berman Jack I.
IONICS Mass Spectrometry Group, Inc.
Logie Michael J
Woodard, Emhardt, Moriarty, McNett & Henry, LLP Patent and
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