Investigation on major, minor and trace elements in some medicinal plants using Particle Induced X-ray Emission.

Elemental concentrations namely P, S, Cl, K, Ca, Sc, Ti, Mn, Fe, Cu, Zn, Rb, Br and Sr were determined using Particle Induced X-ray Emission method in leaves and flowers of medicinal plants namely flowers of Hibiscus rosa-sinensis, leaves and flowers of Annona reticulata, leaves of holy basil and leaves of Psidium guajava. No toxic elements were detected in these samples. The method was validated by analyzing the reference materials namely IAEA RM V-10 and NIST SRM 1632a. The main objective of this study is to provide a good source of elemental concentration data for Ayurvedic medicine dosage. [ABSTRACT FROM AUTHOR]