A Rapid and Sensitive Method for the Determination of Phenazone (Antipyrine®) using Gas-Liquid-Chromatography with Nitrogen Detection

Abstract
A simple and rapid method for the quantitative determination of antipyrine [antipyretic analgesic] using GLC with nitrogen detection, is described. Only 1 extraction step is needed, the recovery is 91.2% and the precision varies between 3.14-1.96%. The lower limit of quantitative assay reached 0.1 mg/l human plasma. During routine handling the method was easy, quick and cheap.