Correlation ion mobility spectroscopy

Pfeifer, Kent B; Rohde, Steven B

Correlation ion mobility spectroscopy

Patent · Tue Aug 26 00:00:00 EDT 2008

OSTI ID:943437

Pfeifer, Kent B ^[1]; Rohde, Steven B ^[2]

Los Lunas, NM
Corrales, NM

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.

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM

Sponsoring Organization:: United States Department of Energy

DOE Contract Number:: AC04-94AL85000

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: 7,417,222

Application Number:: 11/204,268

OSTI ID:: 943437

Country of Publication:: United States

Language:: English

References (8)

Evaluation of suspected interferents for TNT detection by ion mobility spectrometry Matz, Laura M.; Tornatore, Pete S.; Hill, Herbert H. Talanta, Vol. 54, Issue 1 https://doi.org/10.1016/S0039-9140(00)00663-9	journal	March 2001
Fourier Transform Ion Mobility Spectrometry Knorr, F. J.; Eatherton, R. L.; Siems, W. F. Analytical Chemistry, Vol. 57, Issue 2 https://doi.org/10.1021/ac50001a018	journal	February 1985
Apodization functions in Fourier transform ion mobility spectrometry St. Louis, Robert H.; Siems, William F.; Hill, Herbert H. Analytical Chemistry, Vol. 64, Issue 2 https://doi.org/10.1021/ac00026a015	journal	January 1992
External Second Gate, Fourier Transform Ion Mobility Spectrometry: Parametric Optimization for Detection of Weapons of Mass Destruction Tarver, Edward Sensors, Vol. 4, Issue 1 https://doi.org/10.3390/s40100001	journal	January 2004
Space Charge Effects on Resolution in a Miniature Ion Mobility Spectrometer Xu, Jun; Whitten, William B.; Ramsey, J. Michael Analytical Chemistry, Vol. 72, Issue 23 https://doi.org/10.1021/ac0005464	journal	December 2000
Measuring the Resolving Power of Ion Mobility Spectrometers Siems, William F.; Wu, Ching.; Tarver, Edward E. Analytical Chemistry, Vol. 66, Issue 23, p. 4195-4201 https://doi.org/10.1021/ac00095a014	journal	December 1994
Photoemissive ionisation source for ion mobility detectors Begley, P.; Corbin, R.; Foulger, B. E. Journal of Chromatography A, Vol. 588, Issue 1-2 https://doi.org/10.1016/0021-9673(91)85029-F	journal	December 1991
Two-dimensional patterns for optical alignment Butler, M. A.; Pfeifer, K. B.; Martin, S. J. Applied Optics, Vol. 30, Issue 32 https://doi.org/10.1364/AO.30.004600	journal	January 1991

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