ANALYSIS METHOD, ANTIOXIDANT FOR PEPTIDE TO BE SUBJECTED TO MASS SPECTROMETRY AND MASS SPECTROMETRY KIT

摘要

An analysis method which comprises: preparing a sample which contains a peptide to be analyzed and an antioxidant comprising a protein for preventing oxidation of methionine; ionizing the peptide by the laser desorption ionization method; and then mass separating and detecting the ionized peptide.