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Titolo:
Phototransformation of metoxuron [3-(3-chloro-4-methoxyphenyl)-1,1-dimethylurea] in aqueous solution
Autore:
Boulkamh, A; Harakat, D; Sehili, T; Boule, P;
Indirizzi:
Univ Clermont Ferrand, CNRS, UMR 6505, Lab Photochim Mol & Macromol, F-63177 Clermont Ferrand, France Univ Clermont Ferrand Clermont Ferrand FranceF-63177 nt Ferrand, France Univ Mentouri, Lab Sci & Technol Environm, Constantine 25000, Algeria UnivMentouri Constantine Algeria 25000 ronm, Constantine 25000, Algeria Ctr Reg Mesures Phys, F-63177 Clermont Ferrand, France Ctr Reg Mesures Phys Clermont Ferrand France F-63177 ont Ferrand, France
Titolo Testata:
PEST MANAGEMENT SCIENCE
fascicolo: 12, volume: 57, anno: 2001,
pagine: 1119 - 1126
SICI:
1526-498X(200112)57:12<1119:POM[>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOTOLYSIS;
Keywords:
phenylurea; metoxuron; photolysis; photohydrolysis; toxicity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Boule, P Univ Clermont Ferrand, CNRS, UMR 6505, Lab Photochim, F-63177 Clermont Ferrand, France Univ Clermont Ferrand Clermont Ferrand France F-63177 d, France
Citazione:
A. Boulkamh et al., "Phototransformation of metoxuron [3-(3-chloro-4-methoxyphenyl)-1,1-dimethylurea] in aqueous solution", PEST MAN SC, 57(12), 2001, pp. 1119-1126

Abstract

UV irradiation of metoxuron in aerated aqueous solution at 254 nm or between 300 and 450 nm led initially to an almost specific photohydrolysis of the C-Cl bond, resulting in the formation of 3-(3-hydroxy-4-methoxyphenyl)-1,1-dimethylurea (MX3) and hydrogen chloride. The quantum yield was determined to be 0.020 (+/-0.005) in solutions irradiated at 254nm. Five minor photoproducts were also identified, in particular the dihydroxydimethoxybiphenylderivatives resulting from the phototransformation of MX3. Irradiation increased the toxicity of an aqueous solution of metoxuron to the marine bacterium Vibrio fischeri. (C) 2001 Society of Chemical Industry.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 21:37:23