Mass analysis method of organic acid, analytical column and analytical apparatus

摘要

PROBLEM TO BE SOLVED BY THE INVENTION Liquid Chromatographic Mass Spectrometry capable of holding, separating and eluting organic acids, and detecting with high sensitivity, without adding a nonvolatile substance to the mobile phase and without limiting the ratio of the water-soluble organic solvent A method of mass spectrometry by an apparatus and an analytical column.In a mass spectrometric analysis of an organic acid by a liquid chromatograph mass spectrometer, using a hydrophilic polymer packed column having an anion exchange group, a mass of an organic acid using a water-soluble organic solvent-water mixed solution as a mobile phase Analysis method. A column for liquid chromatography of an organic acid in which a hydrophilic polymer having an anion exchange group is packed in a housing for liquid chromatography made of polyetheretherketone (PEEK) resin.