A liquid chromatographic (LC) method for determination of etoposide in dog blood is described. The technique includes solvent extraction of etoposide using a dichloroethane-hexane mixture and reconstitution of the drug in an aqueous reconstitution solution. The samples are analyzed by reversed-phase LC with electrochemical detection. Validation of the method demonstrated good sensitivity, precision and reproducibility. The method is useful for the study of etoposide pharmacokinetics in the dog.
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