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:
Oct. 02, 2018

Filed:

Oct. 15, 2014
Applicant:

Shimadzu Corporation, Kyoto-shi, Kyoto, JP;

Inventor:

Yutaro Yamamura, Kyoto, JP;

Assignee:

SHIMADZU CORPORATION, Kyoto-shi, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/26 (2006.01); H01J 49/00 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0036 (2013.01);
Abstract

A mass analysis device capable of reliably detecting the peak in a mass chromatogram of a given m/z is equipped with a control unit, which generates a mass chromatogram and total ion chromatogram. The control unit includes a determination unit which, using the total ion chromatogram, determines the start time and end time of the peak in the total ion chromatogram by searching for the peak based on maximum value of detected intensity and searching for peak start time and end time based on slope of change of detected intensity; and a detection unit, which detects the peak in the mass chromatogram by making the start time and end time of the peak in the mass chromatogram the same as the start time and end time of the peak in the total ion chromatogram.


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