The physicochemical parameters like total ash, acid insoluble ash, water-soluble ash, alcohol soluble extractive and water-soluble extractives were determined accurately weighed about 3 g of air dried powdered drug was taken in a tarred silica crucible and incinerated by gradually increasing the temperature to make it dull red hot until free from carbon. Cooled and weighed, repeated for constant value. Then the percentage of total ash was calculated with reference to the air dried drug.
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