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.
Patent No.:
Date of Patent:
Sep. 12, 2017
Filed:
Jun. 26, 2015
Applicant:
Micromass Uk Limited, Wilmslow, GB;
Inventors:
Weibin Chen, Holliston, MA (US);
Asish B. Chakraborty, Milford, MA (US);
John Charles Gebler, Hopkinton, MA (US);
Jeffery Mark Brown, Hyde, GB;
Assignee:
Micromass UK Limited, Wilmslow, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/06 (2006.01); H01J 49/26 (2006.01); H01J 49/16 (2006.01); H01J 49/36 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0095 (2013.01); H01J 49/0072 (2013.01); H01J 49/062 (2013.01); H01J 49/165 (2013.01); H01J 49/26 (2013.01); H01J 49/36 (2013.01);
Abstract
A mass spectrometer is disclosed wherein highly charged fragment ions resulting from Electron Transfer Dissociation fragmentation of parent ions are reduced in charge state within a Proton Transfer Reaction cell by reacting the fragment ions with a neutral superbase reagent gas such as Octahydropyrimidolazepine.