目的确定老鹳草鞣质的最佳提取工艺。
ObjectiveTo determine the best extracting process of tannin from geranium herb.
前言： 目的：对老鹳草颗粒荆中的有效成分总鞣质进行定性分析及含量测定。
Objective: To perform the qualitative analysis of, and determine the total tannin content in geranium granules.
方法：采用正交实验法对老鹳草总鞣质的提取工艺进行优选，以总鞣质含量为指标，用EDTA络合法滴定。
The content of total tannin was chosen as the assessment index, and the EDTA complexometric titration was used for the measurement.
方法：采用正交实验法对老鹳草总鞣质的提取工艺进行优选，以总鞣质含量为指标，用EDTA络合法滴定。
The content of total tannin was chosen as the assessment index, and the EDTA complexometric titration was used for the measurement.
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