Use of synergistic extraction for the study of atrazine/metal interactions Original Research Article

The ability of atrazine to interact with several metals was investigated by means of synergistic liquid–liquid extraction. For that purpose, the extraction of cadmium, copper, lead and zinc by 1-phenyl-3-methyl-4-p-tertbutylbenzoyl-5-hydroxypyrazole (HL) in chloroform was studied in the presence of atrazine (ATR). This pesticide enhanced the extraction of these metals in the order Cd>Zn>Cu through the formation of a ML2(ATR) complex. However, no influence of atrazine was observed on the extraction of lead.