Abstract
Abstract The treatment of waste water containing three organophosphorous pesticides: diazinon, azinphos-methyl and fenthion by using continuous flow methodologies coupled on line with HPLC-UV detection is presented. Two continuous flow techniques: completely continuous flow and flow injection, both combined with two separation methods: liquid-liquid extraction and adsorption resins are discussed, as well as the influence of physical and chemical parameters on the analysis. Adsorption resins seem to be more suitalbe for the treatment of waste water at low pesticide concentraions while liquid-liquid extraction is more selective.
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