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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Validation of an HPLC method for the determination of scutellarin in rat plasma and its pharmacokinetics.

A validated HPLC method was developed for the quantification of scutellarin in rat plasma using a liquid-liquid extraction and an ultraviolet detection. Chromatographic separation of scutellarin in plasma was performed on a C18 column, with a mobile phase of acetonitrile-water (23:77, v/v), adjusted to pH 2.5 with 1M phosphoric acid, and rutin was used as an internal standard. The calibration curve was linear over the range 0.1-100 microg/ml in rat plasma. The average extraction recoveries were 85.9+/-8.9, 71.0+/-4.6, 72.7+/-1.2% (n=3) at concentrations of 0.1, 2, 100 microg/ml, respectively, and the within-day and between-day precisions were less than 15%. After intravenous administration to rats over the doses range of 10-40 mg/kg, the plasma concentration-time curve of scutellarin was best conformed to three-compartment open model. The AUC of scutellarin was proportional to dose, and the systemic clearance (Cl), elimination half-life (t1/2beta) and apparent volume of distribution (Vc) were not significantly different among the three doses, suggestive of the linear pharmacokinetics characteristic of scutellarin after intravenous administration.[1]


  1. Validation of an HPLC method for the determination of scutellarin in rat plasma and its pharmacokinetics. Hao, X., Cheng, G., Sun, J., Zou, M., Yu, J., Zhang, S., Cui, F. Journal of pharmaceutical and biomedical analysis. (2005) [Pubmed]
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