Objective: to compare the two methods of content determination for total alkaloids in Tonkin Sophora root. Method: acidbase titration and colorimetric method of acid dye were used.
前言：目的：比较山豆根总碱两种含量测定方法，为山豆根提取工艺优选提供参考。
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OBJECTIVE To develop HPLC and nonaqueous acid-base titration for the determination of nifekalant hydrochloride and its related substances for quality control.