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:
Aug. 15, 2017

Filed:

Feb. 10, 2015
Applicant:

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

Inventors:

Christie L. Hunter, Redwood City, CA (US);

David M. Cox, North York, CA;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); G01N 27/62 (2006.01); G01N 30/72 (2006.01);
U.S. Cl.
CPC ...
G01N 27/622 (2013.01); G01N 30/7233 (2013.01); H01J 49/004 (2013.01); H01J 49/0027 (2013.01);
Abstract

MRM triggered MRM, where the triggered MRM transitions make use of mobility device parameter values for the same compound, is performed. A plurality of primary MRM transitions are received and stored together with a mobility device parameter value for each transition as an MRM cycle list. Control information instructs a mobility device and a mass spectrometer to interrogate each MRM transition on the MRM cycle list within an MRM cycle of the mass spectrometer. If a product ion intensity value of an MRM transition exceeds a threshold value for a primary MRM transition, a plurality of secondary MRM transitions of the primary MRM transition with different mobility device parameter values are added to the MRM cycle list. The intensities of the measured secondary MRM transitions provide information on the optimum mobility device parameter for each compound.


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