Huganning, a Chinese patent medicine, has been used in clinical practice for the treatment of hepatitis in China for more than 20 years, and its main physiologically active components are polydatin and emodin. In this study, a rapid and accurate proton nuclear magnetic resonance method for the quantification of these constituents was developed. 4-Nitrochlorobenzene was selected as an internal standard, and the signals for polydatin at δ 6.44 ppm and emodin at δ 7.54 ppm were chosen for the quantification. Validation of the method was performed in terms of specificity, precision, and stability. The results indicated that the method was precise and in line with the China Food and Drug Administration guidance. The method has been successfully applied to characterize tablets and capsules obtained from six pharmaceutical companies. This study indicated that the rapid 1H NMR method is more suitable for the quality control of Huganning than the high-performance liquid chromatography method.
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This work was supported by the Open Research Fund Program of Shandong Provincial Key Laboratory of Glycoscience & Glycotechnology (Ocean University of China), Fundamental Research Funds for the Central Universities (No. 201912002), and Shandong Provincial Natural Science Foundation, China (No. ZR2019BC025).
Conflict of Interest
The authors declare that they have no conflict of interest.
Protection of Human and Animal Subjects
The authors declare that no experiments were performed on humans or animals for this study.
Confidentiality of Data
The authors declare that no patient data appear in this article.
Right to Privacy and Informed Consent
The authors declare that no patient data appear in this article.
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Wang, C., Zhang, P., Zhang, X. et al. 1H NMR Quantification of Polydatin and Emodin in Huganning, a Chinese Patent Herbal Medicine. Rev. Bras. Farmacogn. (2020). https://doi.org/10.1007/s43450-020-00031-7
- 1H NMR
- Quality control