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- W2377367347 abstract "Objective:To explore the technique of water extracting and alcohol precipitation in the pharmaceutical technique of ganyanping capsules. Methods:The orthogonal design L 9 (34) and L 4(23) were respectively used in water extracting and in alcohol precipitation. Hydrosoluble extract was used as the assessment in the water extracting, and matrine rate was used in alcohol precipitation. The content of matrine was determined by HPLC, which used C 18 (250 mm×4.6 mm, 5 μm) as column with phosphate buffer solution (pH value=4.0, H 2O 1 000 mL+H 3PO 4 2.5 mL+2.0 TEA)-acetonitrile (90∶10) as the mobile phase. The detection wavelength was 210 nm. Results:The total extraction rate was markedly influenced by the factor D in water extracting. The best condition was D 2A 3B 3C 3. In alcohol precipitation, factor B played a more important role than factor A, and the A 1B 1 was chosen. Conclusion:Using matrine rate as the standard can objectively reflect the extraction technique, and the HPLC method for its determination is simple, rapid and accurate." @default.
- W2377367347 created "2016-06-24" @default.
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- W2377367347 date "2004-01-01" @default.
- W2377367347 modified "2023-09-24" @default.
- W2377367347 title "Study of Water Extracting and Alcohol Precipitation in Ingredients Extraction Technique of Ganyanping Capsule" @default.
- W2377367347 hasPublicationYear "2004" @default.
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