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J Chromatogr B Biomed Appl. 1996 Nov 8;686(1):11-7.

High-performance liquid chromatographic determination of fluconazole in plasma.

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Laboratoire de Pharmacologie Clinique, Institut de Biologie, Montpellier, France.


A high-performance liquid chromatographic method with ultraviolet absorbance detection at 260 nm was developed for the analysis of fluconazole in plasma. The method involves sample clean-up by liquid-liquid extraction. The proposed technique is reproducible, selective, reliable and sensitive. Calibration standards were prepared in the range 1.25-20 mg/l. The limit of quantitation was 0.4 mg/l. The coefficients of variation were 5% between measurements of a single extract injected in duplicate, and 7% between two extractions of spiked samples at the same concentrations. The separation between fluconazole and endogenous substances was satisfactory. This method was designed in order to minimise the risk of interference from substances that could be co-administered to critically ill patients undergoing hemodiafiltration. With a run time below 5 min, the present method is rapid and easy to use for later clinical studies, as well as for routine monitoring.

[Indexed for MEDLINE]

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