Acta Pharmaceutica, Vol. 70 No. 3, 2020.
Izvorni znanstveni članak
https://doi.org/10.2478/acph-2020-0025
Simultaneous determination of warfarin and 7-hydroxywarfarin in rat plasma by HPLC-FLD
AREF ZAYED
orcid.org/0000-0003-0211-1866
; Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan
WAHBY M. BABARESH
; Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan
RUBA S. DARWEESH
; Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan
TAMAM EL-ELIMAT
; Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan
Sažetak
In this study, high-performance liquid chromatography with fluorescence detection (HPLC-FLD) has been used for the first time, for direct determination of warfarin and its major metabolite, 7-hydroxywarfarin, in rat plasma. The simple and sensitive method was developed using Fortis® reversed-phase diphenyl column (150 × 4.6 mm, 3 μm) and a mobile phase composed of phosphate buffer (25 mmol L–1)-methanol-acetonitrile (70:20:10, V/V/V), adjusted to pH 7.4, at a flow rate of 0.8 mL min–1. The diphenyl chemistry of the stationary phase provided a unique selectivity for separating the structurally related aromatic analytes, warfarin and 7-hydroxywarfarin, allowing their successful quantification in the complex plasma matrix. The method was linear over the range 0.01–25 μg mL–1, for warfarin and 7-hydroxywarfarin, and was found to be accurate, precise and selective in accordance with US FDA guidance for bioanalytical method validation. The method was sensitive enough to quantify 0.01 μg mL–1 of warfarin and 7-hydroxywarfarin (LLOQ) using only 100 µL of plasma. The applicability of this method was demonstrated by analyzing samples obtained from rats after oral administration of a single warfarin dose, and studying warfarin and 7-hydroxywarfarin pharmacokinetics.
Ključne riječi
warfarin; 7-hydroxywarfarin; high-performance liquid chromatography-fluorescence detection; rat plasma; pharmacokinetics
Hrčak ID:
225573
URI
Datum izdavanja:
30.9.2020.
Posjeta: 1.740 *