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Elemental concentrations in medicinally important leafy materials

P R Reddy1, S J Reddy

  • 1Department of Chemistry, Sri Venkateswara University Tirupati, India.

Chemosphere
|May 1, 1997
PubMed
Summary
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This study analyzed elemental concentrations in 50 medicinal plant leaves, revealing significant seasonal and spatial variations for copper, zinc, and manganese. Findings are crucial for accurate biomonitoring and developing reference materials.

Area of Science:

  • Environmental Science
  • Analytical Chemistry
  • Pharmacognosy

Background:

  • Elemental concentrations in biological materials exhibit significant variability.
  • Accurate sampling is crucial for reliable biomonitoring.
  • Reference Materials (RMs) are essential for Analytical Quality Assurance.

Purpose of the Study:

  • To analyze elemental concentrations in 50 medicinal plant leaves.
  • To assess the influence of seasonal and spatial variations on elemental content.
  • To explore the preparation of Secondary Reference Materials (SRMs).

Main Methods:

  • Analysis of 50 medicinal leafy samples for macro and micro-nutrients, and trace metals.
  • Assessment of sampling parameters including season and spatial variations.

Related Experiment Videos

  • Statistical analysis to determine significance of variations.

    • Main Results:

    • Concentrations of macro-nutrients (Ca, P, Mg, K, Fe, S) and micro-nutrients (Cr, Co, Cu, Mn, Na, Zn) were quantified.
    • Trace metal concentrations (Pb, Cd, Ni, As, Se) were determined.
    • Statistically significant spatial and seasonal variations were observed for Copper (Cu), Zinc (Zn), and Manganese (Mn).

    Conclusions:

    • Medicinal plant leaves show considerable elemental variability influenced by season and location.
    • Understanding these variations is vital for effective biomonitoring.
    • The study provides data for developing RMs and understanding leaf nutritive values and metal intercorrelations.