Ultra-performance liquid chromatographic method for measurement of voriconazole in human plasma and oral fluid

• Autor(a) principal: Boeira,Paula
• Data de Publicação: 2012
• Outros Autores: Antunes,Marina V., Andreolla,Huander F., Pasqualotto,Alessandro C., Linden,Rafael
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Chemical Society (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012000100021
• topic: voriconazole; UPLC-PDA; oral fluid; drug monitoring

A simple, sensitive and selective ultra-performance liquid chromatography method for the determination of voriconazole in plasma and oral fluid was developed and validated. After a liquid-liquid extraction with methyl-tert-butyl ether, the analyte and internal standard were separated on a Hypersil Gold C18 column (2.1 × 100 mm, p.d. 1.9 µm), eluted with a mobile phase composed of thietylammonium phosphate buffer and acetonitrile (70:30, v/v). Total run time was 4 min, total mobile phase consumption of 2.2 mL. Detection was performed with a photodiode array detector with quantitation at 256 nm. Voriconazole concentrations in oral fluid were on average 57.5% (±5.3) of those measured in paired plasma samples.