Abstract
To develop an HPLC method for content determination of dehydroabietic acid and abietic acid in aqueous alkali extract of Liquidambaris Resina. The determination was carried out on a DIONEX C18 column (4.6 mm x 250 mm, 5 microm) eluted with acetonitrile and water containing 0.1% acetic acid. The flow rate was 1 mL x min(-1), and the detected wavelength was set at 210, 240 nm. The peak areas and the sample quantity of the two components had good linear relationship in the range of 0.4-3.4 microg for dehydroabietic acid, and 0.6-4.8 microg for abietic acid. The average recoveries were 99.53%, 101.9%, respectively. The method was proved to be simple, accurate and used for the quality evaluation of Liquidambaris Resina.
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