HPLC fingerprints were carried out to investigate the chemical ingredients of DCQT; synthetic
weighing method based on analytic hierarchy process (AHP) and criteria importance through intercriteria
correlation (CRITIC) was performed to calculate synthetic scores of fingerprints; using the mark
ingredients contents and synthetic scores as indicators, the Box–Behnken design was carried out to
optimize the process parameters of machine decocting process under high pressure for DCQT