NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Iterative and function-continuation Fourier deconvolution methods for enhancing mass spectrometer resolutionMass spectrometer data in the form of ion current versus mass-to-charge ratio often include overlapping mass peaks, especially in low- and medium-resolution instruments. Numerical deconvolution of such data effectively enhances the resolution by decreasing the overlap of mass peaks. In this paper two approaches to deconvolution are presented: a function-domain iterative technique and a Fourier transform method which uses transform-domain function-continuation. Both techniques include data smoothing to reduce the sensitivity of the deconvolution to noise. The efficacy of these methods is demonstrated through application to representative mass spectrometer data and the deconvolved results are discussed and compared to data obtained from a spectrometer with sufficient resolution to achieve separation of the mass peaks studied. A case for which the deconvolution is seriously affected by Gibbs oscillations is analyzed.
Document ID
19860032854
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ioup, J. W.
(Texaco, Inc. New Orleans, LA, United States)
Ioup, G. E.
(New Orleans, University LA, United States)
Rayborn, G. H., Jr.
(Southern Mississippi, University Hattiesburg, MS, United States)
Wood, G. M., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Upchurch, B. T.
(Old Dominion University Norfolk, VA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: International Journal of Mass Spectrometry and Ion Processes
Volume: 55
ISSN: 0168-1176
Subject Category
Instrumentation And Photography
Accession Number
86A17592
Funding Number(s)
CONTRACT_GRANT: NSG-1460
CONTRACT_GRANT: NSG-1648
CONTRACT_GRANT: NSG-1380
CONTRACT_GRANT: NAG1-16
CONTRACT_GRANT: NSG-1285
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available