Mass spectrometer

Details Mass spectrometer Mass spectrometer

2008-01-25

2011-12-13

Vanore, David A (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S281000, C250S288000, C250S290000, C250S291000, C250S292000

Reexamination Certificate

active

08076637

ABSTRACT:
A mass spectrometer is disclosed comprising a quadrupole rod set ion guide or mass filter device. Broadband frequency-signals (13, 14, 15) having a plurality of frequency notches (16a;16b;16c) are applied sequentially to the rods of the quadrupole rod set. The notched broadband frequency signals (16a,16b,16c) cause undesired ions to be resonantly or parametrically ejected from the ion guide. The resulting ion signals are deconvoluted to provide a mass spectrum.

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Japanese Notification of Reason for Rejection, Application No. 2009-546814, dispatched date: Mar. 29, 2011.

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