Radiant energy – Ionic separation or analysis – Methods
Reexamination Certificate
2011-05-17
2011-05-17
Johnston, Phillip A (Department: 2881)
Radiant energy
Ionic separation or analysis
Methods
C250S281000, C250S292000
Reexamination Certificate
active
07943899
ABSTRACT:
A technique for mass spectrometry includes: receiving first time domain data generated from a chromatographic output, the first time domain data including mass spectra; extracting second time domain data from the first time domain data, the second time domain data corresponding to a selected range of mass-to-charge ratios; transforming the second time domain data into frequency domain data; and identifying, as a function of the frequency domain data, an elution peak for a mass-to-charge ratio within the selected range. Material from the chromatographic output may thereafter be processed as a function of the identified elution peak.
REFERENCES:
patent: 4941101 (1990-07-01), Crilly
patent: 4959543 (1990-09-01), McIver et al.
patent: 5324939 (1994-06-01), Louris et al.
patent: 5436447 (1995-07-01), Shew
patent: 5696376 (1997-12-01), Doroshenko et al.
patent: 5885841 (1999-03-01), Higgs et al.
patent: 2004/0222369 (2004-11-01), Makarov et al.
patent: 2004/0251409 (2004-12-01), Le Blanc
patent: 2005/0261838 (2005-11-01), Andreev et al.
patent: 2006/0255258 (2006-11-01), Wang et al.
patent: 2006/0284069 (2006-12-01), Le Blanc
patent: 2008/0315080 (2008-12-01), Makarov et al.
Andreev, et al., “A Universal Denoising and Peak Picking Algorithm for LC-MS Based on Matched Filtration in the Chromatographic Time Domain,” Anal. Chem., vol. 75, p. 6314-6326, (2003).
Kohli, et al., “An Alternative Sampling Algorithm for use in Liquid Chromatography/Tandem Mass Spectrometry Experiments,” Rapid Comm in Mass Spectrom, vol. 19, p. 589-596, (2005).
Wenner, et al., “Factors that Affect Ion Trap Data-Dependent MS/MS in Proteomics,” J Am Soc Mass Spectrom, vol. 15, p. 150-157, (2004).
Johnston Phillip A
Katz Charles B.
Staggs Michael C.
Thermo Finnigan LLC
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