Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1992-05-28
1993-09-28
Anderson, Bruce C.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
250282, B01D 5944, H01J 4928
Patent
active
052488829
ABSTRACT:
Tailored excitation of ions in a mass spectrometer is obtained by using an excitation signal which comprises at least one signal having the form of a sinc function modulated sine wave. The sinc modulated sine wave has a magnitude function in the frequency domain in the form of a rectangular function centered at the frequency of the sine wave and having a width determined by the width of the sinc function. Plural sinc modulated sine wave signals can be applied to the ion trap of the spectrometer, with the various signals having different sine wave frequencies, to provide a tailored excitation spectrum without the need for extended computation.
REFERENCES:
patent: 3461381 (1969-08-01), Nelson et al.
patent: 3742212 (1973-06-01), McIver, Jr.
patent: 3937955 (1976-02-01), Comisarow et al.
patent: 4034191 (1977-07-01), Tomlinson et al.
patent: 4755670 (1988-07-01), Syka et al.
patent: 4761545 (1988-08-01), Marshall et al.
patent: 4818869 (1989-04-01), Weber-Grabau
patent: 4874943 (1989-10-01), Specner
patent: 4945234 (1990-07-01), Goodman et al.
patent: 5013912 (1991-05-01), Guan et al.
patent: 5047639 (1991-09-01), Farrar et al.
patent: 5171991 (1992-12-01), Johnson et al.
Barrett L. Tomlinson, et al., "Fourier Synthesize Excitation of Nuclear Magnetic Resonance wth Application Homonuclear Decoupling and Solvent Line Suppression," J. Chem. Phys., vol. 59, No. 4, Aug. 15, 1973, pp. 1775-1784.
Alan G. Marshall, et al., "Theory of Fourier Transform Ion Cyclotron Resonance Mass Spectroscopy: Response to Frequency-Sweep Excitation," J. Chem. Phys., vol. 73, No. 4, Aug. 15, 1980, pp. 1581-1590.
Alan G. Marshall, et al., "Ion Cyclotron Resonane Excitation/de-Excitation: A Basis for Stochastic Fourier Transform Ion Cyclotron Mass Spectrometry," Chemical Physics Letters, vol. 105, No. 2, Mar. 9, 1984, pp. 233-236.
Alan G. Marshall, et al., "Fourier Transform Ion Cyclotron Resonance Mass Spectrometry: New Theoretical and Instrumental Developments," A.M.S. meeting, San Antonio, Tex., May 27-Jun. 1, 1984, pp. 600-601.
Alan G. Marshall, et al., "Tailored Excitation for Fourier Transform Ion Cyclotron Resonance Mass Spectrometry," Journal of the American Chemical Society, vol. 107, No. 26, 1985, pp. 7893-7897.
Ling Chen, et al., "Phase-Modulated Stored Waveform Inverse Fourier Transform Excitation for Trapped Ion Mass Spectrometry," Analytical Chemistry, vol. 59, No. 3, Feb. 1, 1987, pp. 449-454.
Shenheng Guan, et al., "Optimal Phase Modulation in Stored Wave Form Inverse Fourier Transform Excitation for Fourier Transform Mass Spectrometry. I. Basic Algorithm," J. Chem. Phys. vol. 92, No. 10, May 15, 1990, pp. 5841-5846.
Tao-Chin Lin Wang, et al., "Extensin of Dynamic Range in Fourier Transform Ion Cyclotron Resonance Mass Spectrometry via Stores Wave Inverse Fourier Transform Excitation," Analytical Chemistry, vol. 58, No. 14, Dec., 1986, pp. 2936-2938.
Evan R. Williams, et al., "Hadamard Transform Measurement of Tandem Fourier-Transform Mass Spectra" Analytical Chemistry, vol. 62, No. 7, Apr. 1, 1990, pp. 699-701.
Shenheng Guan, "Linear Response Theory of Ion Excitation for Fourier Transform Mass Spectrometry," J. Am. Soc. Mass Spectrometry, 1991, vol. 2, pp. 483-486.
Anderson Bruce C.
Extrel FTMS, Inc.
LandOfFree
Method and apparatus for providing tailored excitation as in Fou does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for providing tailored excitation as in Fou, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for providing tailored excitation as in Fou will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2192697