Answer Posted / sateesh babu

THERE NO DIFFERENCE BETWEEN PROCEDURE,BOTH ARE SAME.WE GENERALLY TERM IT AS SULPHATED ASH TEST/ROI.IN INDIAN PHARMACOEPIA,CALLED IT AS ROI AND IN USP,CALLED IT AS SULPHATED ASH TESH.BOTH ARE USED FOR THE DETERMINATION OF CONTENT OF INORGANIC MATTER IN AN ORGANIC SUBSTANCE.

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