Yashada bhasma (Calx of Yashada i.e. Zinc) which has its main indication in Prameha (Diabetes) and Netra vikaras (Eye disorders) was prepared according to the prescription in the Ayurvedic classics and subjected to various bhasma parikshas, including the Namburi Phased Spot Test (NPST), one of the qualitative tests described for various Ayurvedic preparations. NPST helps differentiate between, and thus identify, various bhasmas. It depends upon the pattern of the spot, which develops after a specific chemical reaction. Three market samples of Yashada bhasma, which were said to be Parada marita (incinerated using Mercury), were also subjected to the above tests and results compared. The various bhasmas exhibited marked differences in colour, and though NPST yielded desired results for all the samples, there were differences in their spot patterns and colour. The bhasma prepared in our department produced the most accurate results.
Mukta bhasma (calx of Pearl), an unique herbo-mineral preparation used traditionally as an effective antacid, anti-pyretic and anti-ulcer is a compound mainly consisting of calcium carbonate. Many pharmaceutical companies manufacture Mukta bhasma but whether the quality of all remains same or not is always doubtful. This doubt can be cleared by using classical bhasma parikshas like Rekhapurnata,Vaaritara Unama and modern analytical techniques like NPST. Thus, Mukta bhasma prepared by classical reference in our department along with three market samples were subjected to above tests and the results were compared. There was considerable difference in the bhasma parikshas and NPST spot pattern among all the four samples. The bhasma prepared in our department had nearest results to standard NPST of Mukta bhasma.
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