Surfactant assisted spectrophotometric determination of glyphosate in its formulation

Ali Mohammad, M.Z.A.Rafiquee,

Abstract

A simple, selective and surfactant assisted spectrophotometric method was developed for the determination of glyphosate herbicide in its formulation. The absorption spectra of glyphosate-ninhydrin RuhemannÂ’s purple colored complex obtained in basic medium of pH 8 and at a temperature of 100ï‚°C showedmaximumabsorption at 570nm. The effect of various categories of surfactants showed that the absorption of colored complex was foundmaximumin presence of Tx-100.