QUALITATIVE AND QUANTITATIVE ESTIMATION OF GALLIC ACID AND ASCORBIC ACID IN POLYHERBAL TABLETS

摘要

An HPTLC method was developed for Qualitative and Quantitative Estimation of Gallic Acid and Ascorbic Acid in Polyherbal Tablets (Amalant and Sookshma Triphala Tablet) containing Embelica Officinalis, using precoated HPTLC silica gel 60 F254as Stationary Phase and Mobile Phase for Gallic Acid is Toluene: Ethyl Acetate: Formic Acid (6:3:1v/v/v) and for Ascorbic Acid is Ethyl Acetate: Acetic Acid Glacial: Formic Acid: Water (6:1:1:2v/v/v/v). Detection and Quantification were performed densitometrically at |?max254nm for Gallic Acid and Ascorbic Acid. The Standard Rfvalues of Gallic Acid and Ascorbic Acid are 0.34?à0.01 and 0.60?à0.01 respectively. The total peak areas of the Standards [Gallic Acid and Ascorbic Acid] and the corresponding peak areas of extracts were compared and the Gallic Acid content were estimated to be 3.01, 4.89% and 5.01% from Amla Powder, Amalant Tablet and Sookshma Triphala Tablet and the Ascorbic Acid were estimated to be 11.56%, 28.94%, 31.79% from Amla Powder, Amalant Tablet and Sookshma Triphala Tablet