Question

Determination of trace metals in the leaf of rauwolfia serpentina

Answer 1

Abstract The leaves of Indian medicinal plant Rauwolfia serpentina were digested with HNO3 and HClO4 (4:1) and the contents of trace elements such as As, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Ni, Mn, Pb and Zn were determined by atomic absorption spectroscopy. The presence of beneficial element i.e., Ca, Co, Fe, K, Mg, Mn and Zn are within limit but the concentration of Ni is high. The concentration of heavy trace elements Cd, Cu and Pb are within limit but the concentration of as and Cr are high. Keywords: Rauwolfia Serpentina, atomic absorption spectroscopy, essential trace elements, heavy metals.

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