US 12,135,314 B2
Chromatograph mass spectrometer
Kazuma Maeda, Kyoto (JP)
Assigned to SHIMADZU CORPORATION, Kyoto (JP)
Appl. No. 17/601,742
Filed by SHIMADZU CORPORATION, Kyoto (JP)
PCT Filed Jun. 20, 2019, PCT No. PCT/JP2019/024532
§ 371(c)(1), (2) Date Oct. 6, 2021,
PCT Pub. No. WO2020/255340, PCT Pub. Date Dec. 24, 2020.
Prior Publication US 2022/0196614 A1, Jun. 23, 2022
Int. Cl. G01N 30/72 (2006.01); G01N 30/86 (2006.01); H01J 49/00 (2006.01)
CPC G01N 30/72 (2013.01) [G01N 30/8631 (2013.01); H01J 49/0036 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A chromatograph mass spectrometer including: a chromatograph unit configured to separate components in a sample; and a mass spectrometer configured to execute mass spectrometry on ions having a specific mass-to-charge ratio derived from a compound for each compound temporally separated by the chromatograph unit, the chromatograph mass spectrometer comprising:
an analysis condition setting unit configured to allow a user to input a width of a peak on a chromatogram as one of analysis parameters;
a data point number storage configured to store information on an appropriate number of data points corresponding to one peak on a chromatogram;
a sampling time interval calculator configured to calculate a sampling time interval, which is a timing for acquiring data for creating a chromatogram, from the width of a peak inputted through the analysis condition setting unit and the information of the number of data points stored in the data point number storage; and
an analysis control unit configured to control an operation of the mass spectrometer so as to acquire ion intensity data in the mass spectrometer according to the sampling time interval.