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。