Title:
質量分析装置及び質量分析装置における質量較正方法
Document Type and Number:
Japanese Patent JP7063342
Kind Code:
B2
Abstract:
A matrix-derived peak information acquisition unit (31) creates a peak list that summarizes various ions derived from a matrix and their theoretical m/z values based on a result of analysis of a sample of only a matrix, and stores the peak list in a matrix-derived peak information storage unit (32). When an actually-measured mass spectrum of a target sample is obtained, a mass calibration reference peak detection unit (33) uses a peak list corresponding to a matrix used for analysis to identify an ion peak derived from a matrix appearing in the actually-measured mass spectrum. A mass calibration information calculation unit (35) obtains mass calibration information from an actually-measured m/z value and a theoretical m/z value of the identified peak, and a mass calibration processing unit (37) uses the mass calibration information to correct an m/z value of a peak derived from a target compound on the actually-measured mass spectrum. In this manner, accurate mass calibration can be performed without using a standard substance or even in a case where an ion derived from a standard substance cannot be observed with sufficient intensity.
Inventors:
Masahiro Ikegami
Application Number:
JP2019568541A
Publication Date:
May 09, 2022
Filing Date:
February 05, 2018
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
H01J49/00; G01N27/62; H01J49/16
Domestic Patent References:
| JP2010205460A | ||||
| JP2014059964A | ||||
| JP2016006795A | ||||
| JP2007309661A |
Foreign References:
| WO2007055293A1 | ||||
| WO2016103388A1 |
Attorney, Agent or Firm:
Kyoto International Patent Office