STUDY OF QUALITY CONTROL OF VANGA DHATU WITH SPECIAL REFERENCE TO GRAHYAGRAHYATVA CRITERIA

Abstract

In Rasashatra the word Grahyagrahyatva is used in context with raw d rug selection. Grahya means accept able and A grahya is not acceptable . Thus, they signify the quality control techniques. Selection of appropriate raw material is the firs t and foremost step in Drug S tandardisation. These classical textual norms, being in Sansk r it and in ancient terminology, cannot be interpreted by the suppliers or geologists. This creates problems while procuring raw material and leads to confusion regard ing the appropriate mineral intended by ancient texts. Many a times there are minor variations in the composition of minerals that cause variation in their colour. May be, this minor variation in composition brings about ma jor change in its pharmacological properties. If co - relations could be established between ancient criteria and mineralogical properties, standardisation of raw materials in terms of objective norms can be accomplished. An attempt is being made for quality assessment of Vanga (Tin) . Regar ding Grahyagrahyatva of Va n ga, all parameters highlight physical or chemical properties. The Grahyagrahyatva norms were tested with parall el modern analytical techniques e.g. Grutva and Laghutva criteria with specific gravity. Also well designed pro forma a nd visual scales were developed to assess the data which appears to be subjective. But assessed methodically and thus converted into numerical data for applying statistics. In this short term project research attempts were made to assess Grahyatva of colle cted 16 Vanga samples. Grahya and Agrahyatva assessment match with the assessment done by analytical methods to satisfactory and expected extent.