Summary
Twenty bhasmas based on Ca, Fe, Zn, Hg, Ag, K, As, Cu, Sn and gemstones have been analyzed for main constituent elements along with minor (Na, K, Mg, Ca, P), trace (Cr, Mn, Fe, Co, Cu, Zn, Hg) and toxic elements by instrumental neutron activation analysis (INAA) including their C, H, N and S contents. Siddhamakaradhwaja, an Hg preparation and Swet parpati of K were found to be stoichiometrically HgS and KNO3
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Kumar, A., Nair, A., Reddy, A. et al. Availability of essential elements in bhasmas: Analysis of Ayurvedic metallic preparations by INAA. J Radioanal Nucl Chem 270, 173–180 (2006). https://doi.org/10.1007/s10967-006-0326-z
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DOI: https://doi.org/10.1007/s10967-006-0326-z