Improved high-performance liquid chromatographic determination of amoxicillin in human plasma by means of column switching.
J Chromatogr A
; 729(1-2): 259-66, 1996 Apr 05.
Article
em En
| MEDLINE
| ID: mdl-9004948
ABSTRACT
A highly sensitive and selective HPLC method was developed for the determination of amoxicillin in human plasma. After addition of buffer and internal standard, the sample was ultrafiltered and injected on to a precolumn to remove polar plasma interferences. Detection was effected with a UV detector set at 230 nm. The limit of quantification for amoxicillin was 50.1 ng/ml with an imprecision of 4.2% using 0.25 ml of plasma. Linearity was confirmed over the whole calibration range (25.4-0.0501 micrograms/ml) and the inter-day variation ranged from 2.0 to 4.5%. The method was validated according to GLP guidelines and its suitability was demonstrated by the analysis of several hundred samples in a bioequivalence study. The method can be used to determine pharmacokinetic parameters of amoxicillin in humans after a single oral dose of 500 mg.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Penicilinas
/
Amoxicilina
Limite:
Humans
Idioma:
En
Revista:
J Chromatogr A
Ano de publicação:
1996
Tipo de documento:
Article