Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 26, 2008
Patent Application Number
11204268
Date Filed
August 15, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
Correlation ion mobility spectrometry (CIMS) uses gating modulation and correlation signal processing to improve IMS instrument performance. Closely spaced ion peaks can be resolved by adding discriminating codes to the gate and matched filtering for the received ion current signal, thereby improving sensitivity and resolution of an ion mobility spectrometer. CIMS can be used to improve the signal-to-noise ratio even for transient chemical samples. CIMS is especially advantageous for small geometry IMS drift tubes that can otherwise have poor resolution due to their small size.
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