The invention relates to a
fingerprint spectrum determination method of a
ligusticum wallichii tea-blending granular preparation, which comprises the following steps: (a) preparing
ligusticum wallichii tea-blending preparation
test sample: precisely weighing a proper quantity of
ligusticum wallichii tea-blending preparation, adding a
solvent for
reflux extraction, centrifuging the extracting solution, evaporating and
drying supernate, dissolving with water, extracting with n-butyl
alcohol, collecting n-butyl
alcohol extracting solution, evaporating and
drying, dissolving with 70% methyl
alcohol, and filtering by using a
microfiltration membrane to obtain the
test sample; (b) chromatograph condition: with octadecylsilane bonding
silica gel as the chromatograph column of filler, carrying out
gradient elution, wherein a flowing phase A is
acetonitrile, the flowing phase B is 0.01-0.2%
formic acid aqueous solution, and the detection
wavelength is 230-280nm; and (c) determination: precisely adsorbing
test sample solution, introducing in a liquid chromatograph, recording the chromatogram to finally obtain the characteristic
fingerprint spectrum of the ligusticum wallichii tea-blending preparation. The HPLC (
High Performance Liquid Chromatography) characteristic
fingerprint spectrum analysis method for ligusticum wallichii tea-blending preparations, such as the granular preparation, is simple to operate, has the advantages of high precision and
repeatability, and is suitable for controlling the quality of the ligusticum wallichii tea-blending preparations, such as the granular preparation.