Degradation of chlorophenoxyacid herbicides in aqueous media, using a novel electrochemical method

Citation
Ma. Oturan et al., Degradation of chlorophenoxyacid herbicides in aqueous media, using a novel electrochemical method, PEST SCI, 55(5), 1999, pp. 558-562
Citations number
19
Categorie Soggetti
Entomology/Pest Control
Journal title
PESTICIDE SCIENCE
ISSN journal
0031613X → ACNP
Volume
55
Issue
5
Year of publication
1999
Pages
558 - 562
Database
ISI
SICI code
0031-613X(199905)55:5<558:DOCHIA>2.0.ZU;2-3
Abstract
The degradation of five chlorophenoxyacid herbicides has been studied using an electrochemical method based on the Fenton reaction (simultaneous reduc tion of dioxygen and ferric ions). The method consists of electrosynthesizi ng OH. radicals, which react rapidly with chlorophenoxyacids in aqueous med ia. HPLC and GC-MS analysis show the formation of polyhydroxyphenols and qu inones in a first step, and the complete destruction of the aromatic nucleu s upon exhaustive electrolysis. This offers a possible way for the depollut ion of natural waters containing chlorophenoxyacid pesticide residues. (C) 1999 Society of Chemical Industry.