Preparation techniqe and quality standards of Xuan-fei-zhi-ke syrup
- Received Date: 2000-12-11
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Key words:
- Xuan-fei-zhi-ke syrup /
- preparation techniqe /
- ephedrine /
- baicalin /
- quality standard
Abstract: OBJECTIVE To determine the techniqe and quality standards of Xuan-fei-zhi-ke syrup. METHODS Three techniques(decocting,decocting+ethanol precipitating,separate decocting+ethanol-precipitating) were adopted to prepare the syrup sample Ⅰ, Ⅱ,and Ⅲ respectively.The 3 samples were evaluated by qualitative and quantitative analysis.RESULTS The ephedrine and baicalin in sample Ⅲ were the highest among the 3 samples. CONCLUSION The separate decocting plus ethanol precipitating is the best preparation techniqe for Xuan-fei-zhi-ke syrup.The quality standards for Xuan-fei-zhi-ke syrup are that baicalin content must be more than 0.2mg/ml,and the qualitative analysis of ephedrine, flavonoids and saponins must be positive reaction.
Citation: | SU Kai-zhong, WEI Wen-shu, WEI Wei-ming, OU-YANG Ai-jun, DAI Xi-hu. Preparation techniqe and quality standards of Xuan-fei-zhi-ke syrup[J]. Journal of Pharmaceutical Practice and Service, 2001, (4): 209-211. |