Title:
MASS SPECTROSCOPE AND MASS CALIBRATION METHOD FOR MASS SPECTROSCOPE
Document Type and Number:
WIPO Patent Application WO/2019/150576
Kind Code:
A1
Abstract:
A matrix derived peak information acquisition unit (31) creates a peak list summarizing various species of matrix derived ions and their theoretical m/z values on the basis of results of analyzing samples only of the matrix and stores the same in a matrix derived peak information storage unit (32). If an actually measured mass spectrum for target samples is obtained, a standard peak detection unit (33) for mass calibration uses the peak list corresponding to the matrix used in the analysis to identify matrix derived ion peaks appearing in the actually measured mass spectrum. A mass calibration information calculation unit (35) finds mass calibration information from the m/z values actually measured for identified peaks and the theoretical m/z values, and a mass calibration processing unit (37) uses the mass calibration information to correct the m/z values for the target compound derived peaks in the actually measured mass spectrum. Thus, it is possible to perform accurate mass calibration without using reference substances or even when ions derived from reference substances cannot be measured at sufficient intensities.
Inventors:
IKEGAMI MASAHIRO (JP)
Application Number:
PCT/JP2018/003760
Publication Date:
August 08, 2019
Filing Date:
February 05, 2018
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
G01N27/62; H01J49/06; H01J49/40
Domestic Patent References:
| WO2007055293A1 | 2007-05-18 | |||
| WO2016103388A1 | 2016-06-30 |
Foreign References:
| JP2010205460A | 2010-09-16 | |||
| JP2016006795A | 2016-01-14 | |||
| JP2007309661A | 2007-11-29 |
Attorney, Agent or Firm:
KYOTO INTERNATIONAL PATENT LAW OFFICE (JP)
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