Determination of chemical empirical formulas of unknown...

Details Determination of chemical empirical formulas of unknown... Determination of chemical empirical formulas of unknown...

2008-11-26

2010-12-21

Vanore, David A (Department: 2881)

Radiant energy

Ionic separation or analysis

C250S282000, C702S019000, C702S023000

Reexamination Certificate

active

07855356

ABSTRACT:
A method of determining an empirical formula of an analyte ion from a measured mass spectrum including a main peak and one or more isotope peaks. The method comprises comparing a relative isotopic intensity of the measured isotope peak to a calculated relative isotopic intensity of an isotopic ion of a proposed empirical formula and comparing a relative mass defect of the measured isotope peak to a calculated relative mass defect of the isotopic ion of the proposed empirical formula. The proposed empirical formula is identified as a potential candidate for the analyte ion based on these comparisons.

REFERENCES:
patent: 7349809 (2008-03-01), Goodenowe

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