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Patent Searching and Data


Title:
CHROMATOGRAPH MASS SPECTROMETER
Document Type and Number:
WIPO Patent Application WO/2015/059760
Kind Code:
A1
Abstract:
In a chromatograph mass spectrometer according to the present invention, an optimal-gas-pressure search and control unit (42) carries out MRM measurement on a target compound while changing a collision gas pressure, uses the measurement results to search for an optimal collision gas pressure for obtaining a maximum signal strength, and stores the optimal collision gas pressure for each compound in a compound correspondence information storage unit (43). If target compounds are specified when simultaneous analysis of multiple components is carried out, a control sequence determination unit (44) reads the optimal collision gas pressure and retention time information for the specified compounds from the storage unit (43), creates a control sequence for making the gas pressure in a collision cell (31) the optimal gas pressure at the time when each compound is eluted, and stores the control sequence in a control sequence storage unit (45). The present invention makes it possible to detect each compound with a high degree of sensitivity by carrying out measurement on a sample while controlling the gas pressure according to the created control sequence. The present invention can be applied to LC/MS/MS and GC/MS/MS.

Inventors:
OGURI MASATERU (JP)
UEDA MANABU (JP)
Application Number:
PCT/JP2013/078515
Publication Date:
April 30, 2015
Filing Date:
October 22, 2013
Export Citation:
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Assignee:
SHIMADZU CORP (JP)
International Classes:
G01N27/62
Domestic Patent References:
WO2013065173A12013-05-10
Foreign References:
JP2007173228A2007-07-05
JP2012104389A2012-05-31
Other References:
MASAHIKO TAKINO: "Experimental Techniques : Application of liquid chromatography/ mass spectrometry for residue analysis of pesticides (part 2) Residue analysis of pesticides in food using LC-MS/MS and LC-Q/TOFMS", JOURNAL OF PESTICIDE SCIENCE, vol. 37, no. 3, 20 August 2012 (2012-08-20), pages 297 - 302, XP055294999
See also references of EP 3062099A4
Attorney, Agent or Firm:
Kyoto International Patent Law Office (JP)
Patent business corporation Kyoto international patent firm (JP)
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