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[Study on quality for Herba Polygoni Orientalis].

Ai-min Wang1, Yong-lin Wang, Li-na Hu

  • 1School of Pharmacy, Guiyang Medical Colledge, China.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
|October 20, 2006
PubMed
Summary
This summary is machine-generated.

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This study establishes reliable methods for identifying and quantifying key compounds in Herba Polygoni Orientalis. These validated techniques ensure accurate analysis of this important medicinal herb.

Area of Science:

  • Pharmacognosy
  • Analytical Chemistry
  • Herbal Medicine

Background:

  • Herba Polygoni Orientalis is a traditional medicinal herb with various applications.
  • Standardized methods are crucial for ensuring the quality and efficacy of herbal medicines.
  • Accurate identification and quantification of active compounds are essential for quality control.

Purpose of the Study:

  • To develop and validate qualitative and quantitative analytical methods for Herba Polygoni Orientalis.
  • To identify key chemical constituents, including isorientin, orientin, protocatechuic acid, and gallic acid.
  • To establish reliable methods for the quality control of Herba Polygoni Orientalis.

Main Methods:

  • Thin-Layer Chromatography (TLC) was employed for the qualitative identification of isorientin, orientin, protocatechuic acid, and gallic acid.

Related Experiment Videos

  • High-Performance Liquid Chromatography (HPLC) was utilized for the quantitative determination of isorientin and orientin.
  • A Diamonsil C18 column with an acetonitrile-0.1% phosphoric acid mobile phase (18:82) was optimized for separating isorientin and orientin.

    • Main Results:

    • TLC successfully identified isorientin, orientin, protocatechuic acid, and gallic acid in Herba Polygoni Orientalis.
    • HPLC analysis demonstrated excellent separation of isorientin and orientin.
    • The quantitative methods showed high accuracy and precision, with average recoveries of 98.8% and relative standard deviations (RSD) of 2.1% for both compounds within their respective linear ranges.

    Conclusions:

    • The developed TLC and HPLC methods are suitable for the qualitative identification and quantitative determination of Herba Polygoni Orientalis.
    • These validated methods provide a robust framework for the quality control and standardization of Herba Polygoni Orientalis.
    • The established analytical procedures ensure the reliable assessment of Herba Polygoni Orientalis quality for medicinal use.