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Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies
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[Comparative analysis of trace elements in five marine-derived shell TCM using multivariate statistical analysis].

Shuai Zhang, Zhen Chen, Yu-qiang Fu

    Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
    |April 14, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Trace elements in marine shell Traditional Chinese Medicine (TCM) can distinguish between different drugs. Selenium content is a key differentiator, aiding quality control for these important natural products.

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    Area of Science:

    • Pharmacology
    • Analytical Chemistry
    • Materials Science

    Context:

    • Marine-derived shells are utilized in Traditional Chinese Medicine (TCM).
    • Ensuring the quality and authenticity of TCM is crucial for patient safety and efficacy.
    • The Chinese Pharmacopoeia (2010 version) lists specific marine shell TCMs.

    Purpose:

    • To investigate the trace element profiles of five marine-derived shell TCMs.
    • To identify key trace elements for distinguishing between these TCMs.
    • To assess the stability of certain trace elements within specific shell TCMs.

    Summary:

    • Seven trace elements were analyzed in 51 batches of five marine shell TCMs (Ostreae Concha, Haliotidis Concha, Margaritifera Concha, Meretricis Concha, Arcae Concha) using Inductively Coupled Plasma Mass Spectrometry (ICP-MS).
    • Principal Component Analysis (PCA) revealed that Selenium (Se) content significantly differs among the drugs, making it a key distinguishing element.
    • Specific elements like Cobalt (Co), Copper (Cu), Molybdenum (Mo), Arsenic (As), Barium (Ba), and Zinc (Zn) showed relative stability within certain shell TCMs, aiding in their identification.
    • PCA effectively differentiated Arcae Concha and Meretricis Concha from Ostreae Concha, Haliotidis Concha, and Margaritifera Concha, with results correlating to their known medicinal functions.

    Impact:

    • Trace element analysis provides a reliable method for the quality control and authentication of marine-derived shell TCMs.
    • Identifying unique trace element fingerprints can help prevent adulteration and ensure the correct identification of TCM ingredients.
    • Understanding the elemental composition may offer insights into the pharmacological mechanisms and therapeutic efficacy of these TCMs.