1. The catechin, ursolic were determined by HPLC.The polysaccharide and tannide were determined by sulphoacid-phenol and complexometric titration methods respectively.
   用HPLC法测定儿茶素和熊果酸，硫酸-苯酚法测定多糖，络合滴定法测定鞣质的含量。

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