Title: DETERMINATION OF QUERCETIN IN HYPERICUM JAPONICM THUNB CAPSULES
Abstract: Obijective: Toestablish the determination method of quercetin in Hypericum japonicm Thunb(HJT) Capusules.Method: Using a HPLC method for determinat ion of quercetin in HJT.Capusules.HPLC analysis was carried out using Waters(BONDAPAK~(TM) C_(18))and methanol-0.2%phosphoric(55∶45)as the mobile phase;the detection wavelength was 370nm.Resultes: The linear range was 5-80ug,and the regression equation was Y=-14577.958+95433.037X r=0.99998 The average recovery of quercetin was101.7%,RSD为1.7%(n=6).Conclusion: This method is simple,accurate and reproducible enough to can be used for quality control of the granules.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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