The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 19, 2020

Filed:

Jun. 06, 2014
Applicant:

Thermo Fisher Scientific (Bremen) Gmbh, Bremen, DE;

Inventors:

Hans Pfaff, Bremen, DE;

Timothy J. Stratton, Sunnyvale, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/26 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0036 (2013.01); H01J 49/26 (2013.01);
Abstract

A measure of abundance is determined for an element or element combination within a sample, the element or element combination having at least one isotopic variant. An isotopic mass spectral pattern is identified for the element or element combination that indicates an expected abundance and expected mass-to-charge ratio difference for each isotopic variant. These are identified relative to the respective abundance and mass-to-charge ratio of a principal isotope. The isotopic mass spectral pattern is compared with mass spectral data from a molecular mass analysis of the sample to identify peak groups, each matching the isotopic mass spectral pattern. A measure of abundance is determined for the element or element combination as a function of the intensity measurement of one or more peaks from each of the identified peak groups.


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