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:
Jun. 08, 2021

Filed:

May. 30, 2017
Applicant:

Shimadzu Corporation, Kyoto, JP;

Inventors:

Yunqing Huang, Shanghai, CN;

Wenjian Sun, Shanghai, CN;

Xiaoqiang Zhang, Shanghai, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0031 (2013.01); H01J 49/0045 (2013.01); H01J 49/427 (2013.01);
Abstract

A data acquisition method for a mass spectrometer includes providing at least one ion source for generating ions; not fragmenting or less fragmenting the ions when a collision cell is in a first working mode; recording a mass spectrum of the ions generated in the first working mode; selecting more than one ion from the ions, the more than one ion being distributed in a plurality of discontinuous mass-to-charge ratio channels; partially fragmenting the selected ions when the collision cell is in a second working mode; recording a mass spectrum of the ions generated in the second working mode; and, repetitively executing the above steps for several times. The ions distributed in the discontinuous mass-to-charge ratio channels is always selected during the subsequent repeated execution, until the ion intensity of the selected ions is less than a set value.


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