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    Novel Mathematical Model for the Assessment of Similarity of Chromatographic Fingerprints of Volatile Oil from Houttuynia cordata

    Jin Zhou2,3,4★, Qimeng Fan2,3,4★, Yutian Zhang2,3,4, Roxanne Castillo5, Meifeng Xiao2,3,4, Hui Liu2,3,4, Zhifei Zhu2,3,4, Youzhi Liu2,3,4, Yantao Yang2,3,4, Yiqun Zhou2,3,4, Xue Pan2,3,4, Fuyuan He2,3,4★★ Corresponding author

    1. 1College of Pharmacy, Hunan University of Chinese Medicine, Changsha.
    2. 2Hunan Key Laboratory of Druggability and Preparation Modification for Traditional Chinese Medicine, Changsha.
    3. 3Supramolecular Mechanism and Mathematic‑Physics Characterization for Chinese Materia Medicine, Changsha, Hunan, China.
    4. 4University of California Los Angeles, Los Angeles, USA.

    CORRESPONDENCE

    Jin Zhou

    Hunan Key Laboratory of Druggability and Preparation Modification for Traditional Chinese Medicine, Changsha.

    pharmsharking@163.com

    Received: 22-05-2020; Revised: 06-07-2020; Accepted: 15-12-2020.

    Volume 17, Issue 73 · pp. 154–162 · PUBLISHED 15 April 2021 · DOI: 10.4103/pm.pm_192_20

    View on Pharmacogn. Mag. original site ↗

    ABSTRACT

    Objectives: In this study, we aimed to develop a novel mathematical model to analyze the similarity of the chromatographic fingerprints of Houttuynia cordata (HC). Materials and Methods: Total quantum statistical moment similarity (TQSMS) expressions were deduced to evaluate the similarities between two chromatographic fingerprints. The volatile oil samples of HC were analyzed with gas chromatography‑mass spectrometry, and the fingerprints were constructed by the area under the peak of the chromatograms. Results: There were nine peaks in common, and a total of 733 chemical constituents observed among 15 batches of samples. The number of peaks in the chromatographic fingerprints of the 15 batches of HC was 49–137, with a relative standard deviation (RSD) of 30.13%. The sum of area under the peak was 1.159 × 107–3.437 × 108 μv × s, with an RSD 174.56%; MCRTT was 9.410–18.602 min, with an RSD of 20.79%; and VCRTT was 37.549–81.504, with an RSD of 23.27%. The volatile oil composition and content of HC showed strong fluctuation. Therefore, its quality control from the variety and content of the components is impractical. Since TQSMS method can characterize the sample similarity, we can quantitate the correct probability of positive and negative conclusions regardless of the population origin of the samples. Conclusion: Our results show that TQSMS can be an additional method that can be used to assess the similarity of two chromatographic fingerprints.

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      Zhou, J., Fan, Q., Zhang, Y., Castillo, R., Xiao, M., Liu, H., Zhu, Z., Liu, Y., Yang, Y., Zhou, Y., Pan, X., & He, F. (2021). Novel Mathematical Model for the Assessment of Similarity of Chromatographic Fingerprints of Volatile Oil from Houttuynia cordata. Pharmacognosy Magazine, 17(73), 154–162. https://doi.org/10.4103/pm.pm_192_20