Q Lei, Yanqiao Zhao, Huanxiang Luo, Shaoning Yu, D Li
Abstract
There has been little report on the use of in measuring tannin in traditional Chinese medicinal preparations by TLC. Gallic acid, the decomposd product of tannin, was in bright yellow and green color, showing a strong specificity. The measurement of gallic acid can provide reliable indexes for quality assay of TCM preparations.
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There has been little report on the use of in measuring tannin in traditional Chinese medicinal preparations by TLC. Gallic acid, the decomposd product of tannin, was in bright yellow and green color, showing a strong specificity. The measurement of gallic acid can provide reliable indexes for quality assay of TCM preparations.
Key concepts: Gallic acid, Tannin, Chemistry, Chromatography, Hydrolyzable Tannin, Colorimetry, Polyphenol, Traditional medicine