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[Analysis and identification of calculus equi components]

Y Zhu1, Y Chen, L Dai

  • 1Center of Material Analysis, Nanjing University.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
|July 1, 1996
PubMed
Summary

Genuine Mabo, a traditional calculus, contains specific ammonium magnesium phosphate hydrates. False Mabo, however, is primarily composed of calcium carbonate, as revealed by X-ray diffraction analysis.

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Area of Science:

  • Mineralogy
  • Geochemistry
  • Materials Science

Background:

  • Traditional medicines often contain mineral-based components.
  • Accurate identification of these components is crucial for efficacy and safety.
  • Distinguishing between genuine and counterfeit traditional remedies is a significant challenge.

Purpose of the Study:

  • To identify and differentiate the mineralogical composition of genuine Mabo and false Mabao.
  • To establish analytical criteria for authenticating Mabo samples.

Main Methods:

  • X-ray diffraction (XRD) analysis was employed to determine the crystalline structure and phase composition of both genuine and false Mabo samples.

Main Results:

  • Genuine Mabo samples were identified to be primarily composed of ammonium magnesium phosphate hexahydrate (NH4MgPO4·6H2O), ammonium magnesium phosphate monohydrate (NH4MgPO4·H2O), and magnesium hydrogen phosphate trihydrate (MgHPO4·3H2O).

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  • False Mabao samples were found to consist mainly of calcium carbonate (CaCO3).

    • Conclusions:

    • X-ray diffraction analysis clearly distinguishes genuine Mabo from false Mabao based on their distinct mineralogical compositions.
    • The findings provide a reliable method for quality control and authentication of Mabo products in traditional medicine.