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Stabilization of oversaturated aqueous solutions of deltamethrin, a highly lipophilic molecule.

Authors
  • Lefebvre, B
  • Chaillou, C
  • Roubaud, P
Type
Published Article
Journal
Ecotoxicology and environmental safety
Publication Date
Aug 01, 1993
Volume
26
Issue
1
Pages
40–44
Identifiers
PMID: 7691534
Source
Medline
License
Unknown

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.

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