Abstract
Voriconazole and posaconazole are triazole antifungal compounds used in the treatment of fungal infections. Therapeutic drug monitoring of both compounds is recommended in order to guide drug dosing to achieve optimal blood concentrations. In this chapter we describe an HPLC-ESI-MS/MS method for the quantification of both compounds in human plasma or serum following a simple specimen preparation procedure. Specimen preparation consists of protein precipitation using methanol and acetonitrile followed by a cleanup step that involves filtration through a cellulose acetate membrane. The specimen is then injected into an HPLC-ESI-MS/MS equipped with a C18 column and separated over an acetonitrile gradient. Quantification of the drugs in the specimen is achieved by comparing the response of the unknown specimen to that of the calibrators in the standard curve using multiple reaction monitoring.
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Molinelli, A.R., Rose, C.H. (2016). Quantification of the Triazole Antifungal Compounds Voriconazole and Posaconazole in Human Serum or Plasma Using Liquid Chromatography Electrospray Tandem Mass Spectrometry (HPLC-ESI-MS/MS). In: Garg, U. (eds) Clinical Applications of Mass Spectrometry in Drug Analysis. Methods in Molecular Biology, vol 1383. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-3252-8_5
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DOI: https://doi.org/10.1007/978-1-4939-3252-8_5
Publisher Name: Humana Press, New York, NY
Print ISBN: 978-1-4939-3251-1
Online ISBN: 978-1-4939-3252-8
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