The invention discloses and provides a detection method for
triptolide in
tripterygium preparation. The detection method comprises the following steps of (1) chromatographic condition, in which tadecyl
silane chemically bonded silica is used as a filler,
acetonitrile and water are used as a moving phase according to a volume proportion being 25:75, and the detection
wavelength is 220 nanometers; 2)
system applicability experiment, in which the
theoretical plate number is calculated not to be lower than 2,000 according to the
triptolide; 3) preparation of a contrast solution, in which a first
methanol solution is added into the
triptolide to prepare the contrast solution with triptolide having special concentration; 4) preparation of an experiment sample solution; and 5) measurement, in which a certain of the contrast solution obtained in the step 3) and the experiment sample solution obtained in the step 4) are absorbed and injected to a high performance liquid chromatograph for measurement, the
column temperature is 30-40 DEG C, the flowing speed is 1.0ml / min, and the calculation is performed by an external standard method. By the detection method, the content of the triptolide inthe
tripterygium preparation can be accurately detected, the clinical
medication risk is judged in advance, and the clinical medication safety and effectiveness are ensured.