Patent ID: 8927925
Filing Date: 2015-01-06
Classification: H01J

Abstract:
1. A method for identifying ions that generated mass spectral data, comprising: acquiring raw mass spectral data in profile mode containing at least one ion of interest; performing at least one of mass spectral calibration involving peak shape and a determination of actual peak shape function associated with the acquired raw mass spectral data; considering at least one possible elemental composition of the ion; calculating theoretical mass spectral data for said elemental composition using the actual peak shape function; performing a normalization between corresponding parts of the theoretical mass spectral data and that of the raw or calibrated mass spectral data; and displaying mass spectral congruence between said theoretical mass spectral data calculated from said elemental composition and one of raw and calibrated mass spectral data after said normalization using spectral overlays for the determination of elemental composition of said ion associated with said mass spectral data.