Development and validation of a method to determine amoxicillin in physiological fluids using micellar liquid chromatography
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Otros documentos de la autoría: Rambla Alegre, María; Carda-Broch, Samuel; Esteve-Romero, Josep
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
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Título
Development and validation of a method to determine amoxicillin in physiological fluids using micellar liquid chromatographyFecha de publicación
2008Editor
Wiley-BlackwellISSN
16159306Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
A simple and robust method was developed for the routine identification and
quantification of amoxicillin by micellar liquid chromatography. Amoxicillin, a β-lactamase
inhibitor, is one of the most commonly prescribed ... [+]
A simple and robust method was developed for the routine identification and
quantification of amoxicillin by micellar liquid chromatography. Amoxicillin, a β-lactamase
inhibitor, is one of the most commonly prescribed drugs in the treatment of urine and skin
structure infections. In this work, amoxicillin was determined in urine samples without any pretreatment
step in a phenyl column using a micellar mobile phase of 0.10 M sodium dodecyl
sulfate and 4% butanol at pH 3. A UV detection set at 210 nm was used. Amoxicillin is eluted at
5.1 min with no interference by the protein band or endogenous compounds. Linearities (r >
0.9998), intra- and inter-day precisions were determined (RSD (%) 0.4-2.7% and 0.3-5%,
respectively in micellar media, and 0.14-2.6% and 0.13-6%, respectively in urine), and
robustness was studied in the validation of the method. LOD and LOQ were 0.06 and 0.4 μg/mL
in micellar media and 0.11 and 0.4 μg/mL in urine, respectively. Recoveries in the urine matrix
were in the range of 95-110%. The validated method proved to be reliable and sensitive for the
determination of amoxicillin in urine samples [-]
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