normal-pressure acid-base method 常压酸碱法
Acid-base method 酸碱滴定法
Acid-base titration method 酸碱滴定法
acid-base washing purification method 碱酸洗涤法
method of acid-base titration 酸碱滴定法
acid-base potentiometric method 酸碱电位滴定法
The third sample CHCl 3 part of acid base method (mainly containing alkaloids) is better according to the antitussive, expectorant and antiasthmatic activities.
综合分析不同部位的镇咳、祛痰、平喘活性实验结果，样品C即酸碱法的氯仿部位（主要含生物碱）效果较好。
Method: acid base titration and colorimetric method of acid dye were used.
方法：采用容量法和酸性染料比色法。
Methods: Acid hydrolysis, base display color and colorimetric method.
方法酸水解，碱显色和比色法测定总蒽醌的方法。
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