By replacing sulphoacid and silver sulfate solution by combining acid of sulphoacid and phosphoric acid in the back-flow process,the time is shortened and analysis is quicker.
改用硫磷混合酸代替硫酸—硫酸银溶液进行回可极大地缩短回
时间,提高分析速度,得到满意结果。
By replacing sulphoacid and silver sulfate solution by combining acid of sulphoacid and phosphoric acid in the back-flow process,the time is shortened and analysis is quicker.
改用硫磷混合酸代替硫酸—硫酸银溶液进行回可极大地缩短回
时间,提高分析速度,得到满意结果。
The catechin, ursolic were determined by HPLC.The polysaccharide and tannide were determined by sulphoacid-phenol and complexometric titration methods respectively.
用HPLC法儿茶素和熊果酸,硫酸-苯酚法
多糖,络合滴
法
质的含量。
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