The invention discloses a detection method of
Vonoprazan fumarate. The detection method comprises the following steps: using a
high performance liquid chromatography instrument to detect and an area normalization method to perform quantitative analysis, and controlling chromatographic conditions to be that the
chromatographic column is Agilent ZORBAX SB-phenyl; the
injection volume is 5 to 10 [mu]l; the flow velocity is 0.8 to 1.2 ml / min; the
column temperature is 25 to 35 DEG C; the detection
wavelength is 250 to 300 nm; the mobile phase comprises a mobile phase A which is a 0.1% formic acidaqueous solution and a mobile phase B which is
acetonitrile in a volume ratio of (5-70): (30-95); the
diluent comprises
acetonitrile and water in a volume ratio of (40-60): 50; the
detector is a
UV detector; the detection method of
Vonoprazan fumarate, disclosed by the invention, can simply, accurately, rapidly, efficiently and reliably detect the purity and impurities of 5-(2-fluorophenyl)-N-methyl-1-(3-pyridylsulfonyl)-1H-
pyrrole-3-
methylamine fumarate, has very high sensitivity, is simple and convenient in operation, can realize complete separation, and further provides the basis for the research, development and quality detection of the compound.