Objective: To prepare purified products (reference substances) of tannin from Galla Chinensis and formulate their quality standards.
目的：制备五倍子鞣酸精制品(对照品)及制定质量标准。
Objective: To prepare purified products (reference substances) of tannin from Galla Chinensis and formulate their quality standards.
目的：制备五倍子鞣酸精制品(对照品)及制定质量标准。
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