Bhasmas are unique ayurvedic metallic preparations with herbal juices/fruits widely used for the treatment of variety of chronic ailments. Standardization of bhasma is very necessary to confirm its identity and to determine its quality and purity. It will also make sure the safety effectiveness and the acceptability of the formulation. But the most important challenge faced by these formulations is lack of complete standardization. An attempt has been made to summarize the ancient and the advanced methods available for standardization of bhasma such as verna, varitara, rekhapurnatatvam, niruttha, AAS, FTIR, SEM, NPST, etc.
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