Simple and rapid titrimetric method for the determination of metoxuron in commercial formulations

Abstract

A simple and rapid titrimetric method for the determination of metoxuron, based on its oxidation with cerium(IV) in sulfuric acid medium, is described. The method permits detection of the end-point visually, potentiometrically or spectrophotometrically. The proposed method is accurate to ±0.6% with a relative standard deviation of 0.8% and is recommended for the routine determination of this herbicide in its commercial formulations.