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- W2358501427 abstract "OBJECTIVE:To investigate the quality standard of Arctium lappa. METHODS:TLC was used to qualitatively identify oleanolic acid in A. lappa. The contents of moisture,total ash,extract were determined. HPLC was used to determine the content of chlorogenic acid in A. lappa. The determination was performed on Alltima C18(250 mm×4.6 mm,5 μm)column with mobile phase consisted of acetonitrile-0.4% phosphoric acid(13 ∶ 87,V/V)at the flow rate of 1 ml/min. The detection wavelength was set at 327 nm,and column temperature was 30 ℃. RESULTS:The test samples had same color TLC spots to substance control and reference substance on the same position. The contents of moisture,total ash and extract in A. lappa were defined. The linear range of chlorogenic acid were 0.140 8-1.056 0 μg(r=0.999 9)with an average recovery of 99.48%(RSD=1.34%,n=6). CONCLUSIONS:The method is specific and can be used for qualitative detection and quantitative detection. It also can be used for the quality control of A. lappa." @default.
- W2358501427 created "2016-06-24" @default.
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- W2358501427 date "2014-01-01" @default.
- W2358501427 modified "2023-09-27" @default.
- W2358501427 title "Study on Quality Standard of Arctium lappa" @default.
- W2358501427 hasPublicationYear "2014" @default.
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