title: Stabilization of oversaturated aqueous solutions of deltamethrin, a highly lipophilic molecule.
abstract: The stability of oversaturated solutions of the highly lipophilic molecule deltamethrin under the conditions of continuous agitation and oxygenation by air bubble flow in a toxicologic test on fish embryos was studied. In polyethylene, glass, and Teflon containers, the 24-hr adsorption rate of 1 mg/l solutions was over 80%. Improvement by Sharon and Solomon's PEG-glass pretreatment did not exceed a small percentage. After agarose precoating, the adsorption rate in the glass or polyethylene containers was reduced to about 20%. The stabilizing effect of precoating agarose containers diminished with the concentration of the solution.
authors.affiliation: Laboratoire de Cytophysiologie et Toxicologie Cellulaire, Université Paris, France.
authors.forename: B
authors.initials: B
authors.lastname: Lefebvre
authors.forename: C
authors.initials: C
authors.lastname: Chaillou
authors.forename: P
authors.initials: P
authors.lastname: Roubaud
mesh_terms: D000327:Adsorption; D005898:Glass; D007306:Insecticides / Q000737:chemistry*; D009570:Nitriles; D011095:Polyethylenes; D011138:Polytetrafluoroethylene; D011722:Pyrethrins / Q000737:chemistry*; D012685:Sepharose / Q000737:chemistry*; D012996:Solutions
chemical_list: D007306:Insecticides; D009570:Nitriles; D011095:Polyethylenes; D011722:Pyrethrins; D012996:Solutions; C017180:decamethrin; D011138:Polytetrafluoroethylene; D012685:Sepharose