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. 11, 2021

Filed:

Dec. 15, 2016
Applicant:

Dh Technologies Development Pte. Ltd., Singapore, SG;

Inventors:

Takashi Baba, Richmond Hill, CA;

Paul Baker, Pittsburgh, PA (US);

John Lawrence Campbell, Milton, CA;

Yves Le Blanc, Newmarket, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); G01N 33/92 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0072 (2013.01); G01N 33/92 (2013.01); H01J 49/0054 (2013.01);
Abstract

A method and apparatus for analyzing samples using mass spectrometry are disclosed. The apparatus includes a reaction device configured to dissociate sample ions into fragments by reacting the sample ions with a charged species (e.g., electrons) such as through ECD, EID, or EIEIO. The kinetic energy of the charged species is such that the fragments may be detected and produce spectra that allow for the determination of isomeric species in the sample and the location of double bonds and/or the orientation of those double bonds within the sample molecules. The fragments may include radical fragments and non-radical fragments. Spectra resulting from analysis of the fragments may allow for the determination of the oxygen-radical fragments resulting from the dissociation of the sample molecules as confirmation of the presence of those radical fragments.


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