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Application of a sensitive and specific LC-ESI-MS/MS method for the simultaneous quantification of twelve bioactive components in dog plasma for an intravenous pharmacokinetic study of Yiqifumai Injection in beagle dogs.
Biomedical Chromatography : BMC 2018 August
Yiqifumai Injection is a lyophilized powder preparation widely used to treat coronary heart disease. However, its in vivo bioactive components and pharmacokinetic behavior remain unknown. Therefore a sensitive and specific LC-MS/MS was developed and validated for the simultaneous quantification of eight saponins and four lignans in beagle dog plasma. The plasma samples were pretreated by protein precipitation with methanol-acetonitrile (1:1, v/v). Chromatographic separation of all the 12 analytes and estazolam (internal standard, IS) was successfully accomplished on an Ultimate® XB-C8 column (100 × 2.1 mm, 3 μm) with a gradient elution system. The total running time was 8 min with a flow rate of 0.40 mL/min. Acquisition of mass spectrometric data was performed via positive electrospray ionization in multiple reaction monitoring mode. The assay was fully validated in terms of selectivity, linear range, lower limit of quantitation, precision, accuracy, matrix effect, recovery and stability. This validated method was successfully applied to the pharmacokinetics of 12 bioactive components after intravenous administration of Yiqifumai Injection to beagle dogs at a dose of 0.541 g/kg.
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