Method for determining atomic isotope masses

Details Method for determining atomic isotope masses Method for determining atomic isotope masses

2007-03-20

2007-03-20

Wells, Nikita (Department: 2881)

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

C356S308000, C356S315000, C436S035000, C436S056000, C436S133000, C436S172000

Reexamination Certificate

active

10936413

ABSTRACT:
A method for determining atomic isotope masses in mass spectrometry, atomic isotope ratios being determined from molecular isotope ratios measured by means of an isotope mass spectrometer—ion correction, the determination of the atomic ratios being carried out by setting up and solving a system of equations which describes relationships between the atomic and the molecular ratios, and the system of equations having to have at least as many independent equations as there are atomic ratios. The entire system of equations is linearized by means of suitable numerical methods in a first step, in particular by means of a Taylor expansion or similar method, and in which the linearized system of equations is subsequently solved as a whole without transforming the individual equations.

REFERENCES:
patent: 3786249 (1974-01-01), Anbar et al.
patent: 4734579 (1988-03-01), Lucatorto et al.
patent: 5545894 (1996-08-01), Funsten et al.

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