HPLC determination of Capsule in the brain of paeo

e707004304 · Wysłany: Pią 10:51, 18 Mar 2011

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HPLC determination of Capsule in the brain of paeoniflorin

Reproduce the experiment to take the same number of samples were accurately weighed 5 . Extracted by the above method and conditions . Determined. The average content measured 1.93mg / tablets. RSD 0.77 %. 2.1O recoveries of paeoniflorin test accurately weighed reference substance 14.47mg. Home 1OII11 volumetric flask ; diluted with methanol to the mark ,[link widoczny dla zalogowanych], even broadcast . As a reference substance stock solution (containing paeoniflorin was 1.447mg · ml). Take a known amount of ancient samples ( batch number 041009 , sets the amount of 1.93mg / grains , the average weight 0.3746 0.2g,[link widoczny dla zalogowanych], accurately weighed, a total of 5 copies. were the inclusion of such reference substance stock solution precision lm1. by Methods and conditions described in the text were determined , namely, eleven ~ eleven Qilu Pharmaceutical QiluPharmaceuticalAffairs2006Vo1.25,[link widoczny dla zalogowanych], No.3 average recovery rate was calculated 100.75%, RSD; O.99, the results in Table 1. Wrap I added What kind of recovery experiments i55 · 2.11 by the above method of determination and determination of conditions ,[link widoczny dla zalogowanych], 1O batches of samples were measured , the results in Table 2. Wrap 2 sample assay results of three batches of paeoniflorin in the sample batch (mg / grain ) Average content (rag / grain ) sample batch paeoniflorin (rag / grain ) average concentration (rng / ~) 0410091.9350409072.1492.081.9142.O111.909I.930412111.9491.95I +9461.9441.9313 Determination of extraction method has been discussed by methanol reflux extraction. determined, the results complicated operation , and the impurity more. Therefore, sonication extraction method using methanol backward samples with satisfactory results.