Hadamard transform measurement of MSN Fourier-transform mass spe

Details Hadamard transform measurement of MSN Fourier-transform mass spe Hadamard transform measurement of MSN Fourier-transform mass spe

1990-03-28

1990-12-18

Berman, Jack I.

Radiant energy

Ionic separation or analysis

Methods

250291, 436173, H01V 4900, B01D 5944

Patent

active

049788523

ABSTRACT:
The simultaneous collection of multiple spectra using tandem and multidimensional mass spectrometry from multiple precursors yields correspondingly enhanced sensitivity through Hadamard transform deconvolution. For MS.sup.n spectra, the product relationships are coded by a Hadamard differences method wherein the combined daughter spectrum of a selected half of the precursors is subtracted from the combined daughter spectrum of the remaining precursors, so that no ions are lost.

REFERENCES:
patent: 4931639 (1990-06-01), McLafferty
McLafferty et al., Analytical Chemistry, 59, 1987, pp. 2212-2213.
McLafferty et al., International Journal of Mass Spectrometry and Ion Processes, 72 (1986), pp. 85-91.

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