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Reuter, S. ; Ilim, M.* ; Munch, J.-C. ; Andreux, F.* ; Scheunert, I.

A model for the formation and degradation of bound residues of the herbicide 14C-isoproturon in soil.

Chemosphere 39, 627-639 (1999)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The humic monomer catechol was reacted with 14C-isoproturon and some of its metabolites, including 14C-4-isopropylaniline, in aqueous solution under a stream of oxygen. Only in the case of 14C-4-isopropylaniline, incorporation in oligomers, in fulvic acid-like polymers, and in humic acid-like polymers was observed. The main oligomer was identified by mass spectrometry as 4,5-bis-(4-isopropylphenylamino)-3,5-cyclohexadiene-1,2-dione. Oligomers and polymers containing bound 14C-4-isopropylaniline were subjected to biodegradation studies in a loamy agricultural soil during 55 days by quantifying 14CO2 evolved. In all cases, significant mineralization rates could be determined, which, however, were much smaller than those of free 14C-isoproturon and free 14C-4-isopropylaniline in the same soil.  
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter isoproturon; phenylurea herbicide; 4-isopropylaniline; biodegradation; bound residues; humic substances; catechol; quinone
ISSN (print) / ISBN 0045-6535
e-ISSN 1879-1298
Zeitschrift Chemosphere
Quellenangaben Band: 39, Heft: 4, Seiten: 627-639 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort Kidlington, Oxford
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Soil Ecology (IBOE)