Abstract
A reversed-phase high-performance liquid chromatographic column switching system is described for the rapid and complete separation of 1-β- d-arabinofuranosylcytosine (Ara-C), 1-β- d-arabinofuranosyluracil (Ara-U) and sodium salicylate using an internal standard of sodium cefmetazole. The system is highly selective and separates these compounds from interfering compounds commonly in biological matrices. The system was tested by following the pharmacokinetics of Ara-C after rectal administration in the presence of sodium salicylate which is an aid to drug absorption. The chromatographic system is also suitable for monitoring levels of Ara-C and its metabolite Ara-U after intravenous administration of Ara-C.
Published Version
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