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AssigneeShimadzu Corporation
InventorsYuichiro FUJITA, Hiroaki KOZAWA, Yuriko NAKAKIMURA, Akira NISHIO, Yoshikatsu UMEMURA
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A first aspect of a chromatograph mass spectrometry data processing method according to the present invention is a chromatograph mass spectrometry data processing method for processing an MS2 spectrum acquired by performing MS1 analysis to acquire an MS1 spectrum, selecting one MS1 peak from one or a plurality of MS1 peaks appearing in the acquired MS1 spectrum, and performing MS2 analysis using ions belonging to a mass-to-charge ratio range as precursor ions for a predetermined mass-to-charge ratio range including a mass-to-charge ratio corresponding to the selected one MS1 peak, the method comprising a process of setting a peak threshold based on an intensity of the selected one MS1 peak, and a process of comparing an intensity of an MS2 peak appearing in the MS2 spectrum with the peak threshold, and determining that the MS2 spectrum is a chimeric MS2 spectrum when there is an MS2 peak having an intensity greater than the peak threshold.
A chromatograph mass spectrometry data processing method for processing an MS2 spectrum acquired by performing MS1 analysis to acquire an MS1 spectrum, selecting one MS1 peak from one or a plurality of MS1 peaks appearing in the acquired MS1 spectrum, and performing MS2 analysis using ions belonging to a mass-to-charge ratio range as precursor ions for a predetermined mass-to-charge ratio range including a mass-to-charge ratio corresponding to the selected one MS1 peak, the method comprising:
A chromatograph mass spectrometry data processing method for processing an MS2 spectrum acquired by performing MS1 analysis to acquire an MS1 spectrum, selecting one MS1 peak from one or a plurality of MS1 peaks appearing in the acquired MS1 spectrum, and performing MS2 analysis using ions belonging to a mass-to-charge ratio range as precursor ions for a predetermined mass-to-charge ratio range including a mass-to-charge ratio corresponding to the selected one MS1 peak, the method comprising:
A chromatograph mass spectrometry data processing apparatus, comprising:
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