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:
Sep. 20, 2016

Filed:

Dec. 17, 2014
Applicant:

Perkinelmer Health Sciences Canada, Inc., Woodbridge, CA;

Inventors:

Charles Jolliffe, Schomberg, CA;

Gholamreza Javahery, Kettleby, CA;

Lisa Cousins, Woodbridge, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/04 (2006.01); H01J 49/06 (2006.01); H01J 49/26 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0422 (2013.01); H01J 49/04 (2013.01); H01J 49/0468 (2013.01); H01J 49/06 (2013.01); H01J 49/26 (2013.01); Y10T 436/24 (2015.01);
Abstract

A mass spectrometer interface, having improved sensitivity and reduced chemical background, is disclosed. The mass spectrometer interface provides improved desolvation, chemical selectivity and ion transport. A flow of partially solvated ions is transported along a tortuous path into a region of disturbance of flow, where ions and neutral molecules collide and mix. Thermal energy is applied to the region of disturbance to promote liberation of at least some of the ionized particles from any attached impurities, thereby increasing the concentration of the ionized particles having the characteristic m/z ratios in the flow. Molecular reactions and low pressure ionization methods can also be performed for selective removal or enhancement of particular ions.


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