US 11,940,426 B2
Chromatograph mass spectrometer
Kazuma Maeda, Kyoto (JP)
Assigned to SHIMADZU CORPORATION, Kyoto (JP)
Appl. No. 17/437,263
Filed by SHIMADZU CORPORATION, Kyoto (JP)
PCT Filed Mar. 27, 2019, PCT No. PCT/JP2019/013228
§ 371(c)(1), (2) Date Sep. 8, 2021,
PCT Pub. No. WO2020/194582, PCT Pub. Date Oct. 1, 2020.
Prior Publication US 2022/0178888 A1, Jun. 9, 2022
Int. Cl. G01N 30/72 (2006.01); G01N 27/70 (2006.01)
CPC G01N 30/7213 (2013.01) [G01N 27/70 (2013.01); G01N 30/7293 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A chromatograph mass spectrometer comprising:
a component separation unit configured to temporally separate components in a sample;
a first detector configured to acquire measurement data of components included in an outflowing liquid from the component separation unit by an analysis method different from mass spectrometry;
a mass spectrometer configured to acquire mass spectrometry data including intensity information for each of mass-to-charge ratios of ions derived from the components contained in the outflowing liquid from the component separation unit;
a chromatogram creation unit configured to create a chromatogram representing an intensity change of the measurement data with time based on the measurement data of the first detector;
an information extraction unit configured to detect a peak based on the intensity change of the mass spectrometry data with time, and to extract information including a representative time of the peak; and
a chromatogram display unit configured to display the chromatograph together with additional information corresponding to the extracted time.