Correlation ion mobility spectroscopy

Details Correlation ion mobility spectroscopy Correlation ion mobility spectroscopy

2005-08-15

2008-08-26

Vanore, David A. (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S286000

Reexamination Certificate

active

07417222

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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