HPLC method for the pharmacokinetics study of acemetacin in human plasma

Abstract

A reproducible and specific high performance liquid chromatography (HPLC) method was developed to quantity plasma levels of acemetacin and its metabolite, indometacin in order to conduct a pharmacokinetics study. Plasma samples were prepared by liquid-liquid extraction using ethyl acetate.- Extracted samples were analyzed on a reverse-phase C-18 column with a mobile phase consisting of 20mM phosphate buffer (pH 2.9) and acetonitrile (60:40, v/v) and UV detection at 254nm. Using this method, the phannacokinctics study was carried out on eight volunteers after a single oral administration.