广东药学院学报2013，Vol.29Issue(3)：281-284,4.DOI:10.3969/j.issn.1006-8783.2013.03.015
电位返滴定法测定玉叶金花中总有机酸的含量
Determination of total organic acids from Mussaenda Pubescens Ait.f.by potentiometric back titration
潘利明 1林励2
作者信息
- 1. 广东药学院中药学院,广东广州510006
- 2. 广州中医药大学中药学院,广东广州510006
- 折叠
摘要
Abstract
Objective To establish a determination method for the total organic acids in Mussaenda Pubescens Ait.f..Methods Salicylic acid was employed as reference to determine the total organic acids by potentiometric back titration.Results Ten samples of different orgins and the sample of each month were assayed,and the free total organic acids in the extracts of Mussaenda Pubescens Ait.f.were between 2.10％-8.65％ (RSD =0.02％-0.17％,n =5).Conclusion This method is simple,accurate and may be used to determine the total organic acid in Mussaenda Pubescens Ait.f..关键词
玉叶金花/水杨酸/总有机酸/电位返滴定法Key words
Mussaenda Pubescens Ait.f./ salicylic acid/ total organic acids/ potentiometric back titration分类
药学引用本文复制引用
潘利明,林励..电位返滴定法测定玉叶金花中总有机酸的含量[J].广东药学院学报,2013,29(3):281-284,4.
