title: Quantification of ofloxacin in biological fluids by high-performance liquid chromatography.
abstract: A simple HPLC assay was evaluated for analysis of ofloxacin in biological fluids. Mobile phase contained methanol (40%) and phosphate buffer (pH 3.5, 60 mmol/l) and a common C18 column was used. Detection was set at 280 nm (UV). Biological fluids (50 microliters) were prepared for assay by protein precipitation with acetonitrile (1/1, vol/vol). The assay is linear from 2000 to 10 ng/ml and sensitive to 10 ng/ml. The mean recovery of ofloxacin from serum was 99.4%. The coefficient of variation was < or = 4.0% for same-day precision and < or = 6.8% for assay-to-assay precision. Because the assay requires only small specimens volumes and minimal sample preparation, this assay provides a simple to use, sensitive and specific method for quantification of ofloxacin in biological fluids.
authors.affiliation: University of Istanbul, Cerrahpaşa Faculty of Medicine, Department of Pharmacology, Turkey.
authors.forename: S
authors.initials: S
authors.lastname: Ozyazgan
authors.forename: V
authors.initials: V
authors.lastname: Senses
authors.forename: Z
authors.initials: Z
authors.lastname: Ozüner
authors.forename: A G
authors.initials: AG
authors.lastname: Akkan
mesh_terms: D001082:Aqueous Humor / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D006801:Humans; D066298:In Vitro Techniques; D015242:Ofloxacin / Q000032:analysis*
chemical_list: D015242:Ofloxacin