Quality identification of Liuwei Dihuang Wan by UV-IR spectrum systematic quantified fingerprint

Objective To set up the UV-IR combined spectrum fingerprints of Liuwei Dihuang Wan(LWDHW) and apply the theory of equal weight combined model to identify the quality by spectrum systematic quantified fingerprint method(SSQFM).Methods The referential UV fingerprint and the referential IR fingerprint(RIRFP) were synthesized respectively by the point to point data of UV and IR spectra of 10 batches of LWDHW,in which equal weight was given to each of RUVFP and RIRFP to produce the entire RFP,and the RFP,Sm and Pm of each of the 10 batches of LWDHW were calculated.Results The quality of the 10 batches of LWDHW were thoroughly identified by SSQFM.Among the 10 batches of LWDHW,the quality of 7 batches was good,while that of 2 batches was ordinary and 1 batch was poor.Conclusion The established spectrum fingerprints of LWDHW combined with SSQFM can comprehensively and effectively identify the authentic quality of LWDHW.