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Abstract

The problem is to provide a MALDI mass spectrometry method that can be used for a mass spectrometry method by a general MALDI method with which it is possible to measure multiple molecules to be measured that are contained in a sample quantitatively in a short period of time with good efficiency compared with conventional methods. The problem is solved by a MALDI mass spectrometry method for a sample containing multiple molecules to be measured, which is a MALDI mass spectrometry method characterized in that the multiple molecules to be measured are a saccharide mixture, a glycopeptide mixture, a glycopeptide-peptide mixture, a glycoprotein mixture, or a glycoprotein-protein mixture, and that a quantitative mass spectrum of the multiple molecules to be measured is obtained from an arbitrary point in the sample to be measured where a signal is detected without measuring and integrated averaging the entire sample to be measured.

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