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Quantification of zidovudine and one of its metabolites in plasma and urine by solid-phase extraction and
1Pharmacie Centrale des Hospices Civils de Lyon, Saint Genis Laval, France.
Abstract:
A rapid, sensitive and selective method for the quantification of zidovudine (AZT) and one of its metabolites (the 5'-glucuronyl form of zidovudine, G-AZT) in biological fluids is described, based on high-performance liquid chromatography. Solid-phase extraction on-line with chromatographic separation was used. The limit of quantitation of the assay is 10 ng/ml of plasma or urine for G-AZT and 20 ng/ml of plasma or urine for AZT.