Abstract
A single-solvent extraction step high-performance liquid chromatographic method is described for quantitating midazolam and its two hydroxy metabolites in rat serum microsamples (50 μl). The separation used a 2 mm I.D. reversed-phase Symmetry C 18 column with an isocratic mobile phase consisting of methanol-acetonitrile-14.9 m M sodium acetate in water at pH 3.0 (10:23:67, v/v). The detection limit was 10 ng/ml for all the compounds using an ultraviolet detector operated at 230 nm. The method was used to study the pharmacokinetics of midazolam after an intravenous bolus dose (0.75 mg/kg).
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Schedule a callMore From: Journal of Chromatography B: Biomedical Sciences and Applications
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