METHOD FOR IDENTIFYING MOLECULAR WEIGHT OF PHOSPHORIC ACID MONOESTER COMPOUND AND ADDITIVE FOR MASS SPECTROMETRY

摘要

A method capable of even with respect to, for example, any biological sample containing multiple compounds, not only confirming the presence of a compoun d having been converted to a phosphoric acid monoester (peptide, sugar, etc.) among them but also easily identifying the molecular weight thereof; and an additive for mass spectrum measurement which can be used in this method. In this method, use is made of a complex compound exhibiting extremely high coordination capacity for phosphoric acid monoester groups, configured of a single zinc isotope, and multiple mass spectrum data are collected and compared with each other.