HPLC determination of digital fingerprint and reliability of Zhusha Anshen Pills

Evaluating the quality consistency of antiviral oral liquid by high-performance liquid chromatography five-wavelength matched average fusion fingerprint combined with electrochemical fingerprint and ultraviolet spectral quantum fingerprint

The antiviral oral liquid (AOL) was an antiviral drug currently in clinical trials against coronavirus disease 2019. This study aimed to improve its quality consistency evaluation method using fingerprint techniques from several aspects. First, the five-wavelength matched average fusion fingerprint (FMAFFP) for HPLC, electrochemical fingerprint (ECFP), and ultraviolet spectral quantum fingerprint (UVFP) was established for 22 samples, respectively. Their quality was then assessed using the average linear quantitative fingerprint method, and 22 samples were classified into eight quality grades. OPLS and PCA were then used further to explore the characteristic parameters of these three fingerprints. Five compounds were quantified simultaneously for the first time, and then the relationship between the average linear quantitative similarity (P_L) and the sum of the five quantitative components (P_5c) was investigated. A linear correlation (r ≥ 0.9735) between P_L and P_5c suggested that P_L may be used to predict chemical content. Finally, to investigate the antioxidant potential of the AOL, correlation analyses were performed for FMAFFP peaks-P_EC and UVFP peaks-P_EC, respectively, where the P_EC value was defined as the quantitative similarity of ECFP. The Pearson correlation coefficient and gray correlation analysis were consistent, allowing us to initially explore the antioxidant capacity of the unidentified components of the samples. This study researched AOL using multidimensional fingerprints to provide a comprehensive and reliable method for quality consistency control of herbal compound preparations.

Integrated quality assessment of Tieshuang Anshen prescription by multiple fingerprint profiles combined with quantitative analysis and chemometric methods

Chinese herbal medicine compound prescription (CHM-CP) contains more complex active compounds than single herbal medicine owing to its compatibility.

Entirely control the quality consistency of Rong'e Yishen oral liquid by both quantified profiling and quantitative analysis of multi-components by single marker method

Quantified profiling and quantitative analysis of multi-components by single marker (QAMS) method were combined to control the quality consistency of Rong'e Yishen oral liquid (REYS) in this paper. Firstly, High Performance Liquid Chromatography (HPLC) with diode array detection (DAD) was applied to collect fingerprints and establish a content determination method. Then, two methods of QAMS and the external standard method (ESM) were used for comparative study to investigate the feasibility of the former to accurately control the quality of individual marker. The results showed that there was no significant difference in quantitative determination between QAMS and ESM (t test, P＞0.05). Sodium benzoate, as an internal reference standard (IRS), can be used to simultaneously quantify Icariin, Echinacoside, and Acteoside three components of the oral liquid. Finally, the fingerprint of 15 batches of REYSs was assessed by SQFM with Hierarchical clustering analysis (HCA). The result of the quality evaluation demonstrated that 15 batches were divided into 3 levels and had good quality consistency. What's more, the content percentage of the dominant three medicinal markers and their total amount presented a close correlation with the macro quantitative similarity (P_m) of samples. Thus, quantified profiling combined with QAMS, which is systematic, simple, rigorous, and objective, could be a novel method to evaluate the quality consistency of REYS or even other traditional Chinese medicine (TCM).