Photodegradation of metsulfuron-methyl, a sulfonylurea herbicide, has been investigated in aqueous solution at different pH and excitation wavelengths. The efficiency of the process has been evaluated through quantum yield determinations. The identification of the photoproducts indicates that the major photochemical pathway is initiated by C-S bond dissociation followed by involvement of water to yield the main final products; the behaviour in water is shown to differ markedly from that in an organic environment. © 2004 Elsevier Ltd. All rights reserved.
Light-induced degradation of metsulfuron-methyl in water / Caselli, Monica. - In: CHEMOSPHERE. - ISSN 0045-6535. - STAMPA. - 59:8(2005), pp. 1137-1143. [10.1016/j.chemosphere.2004.11.076]
Light-induced degradation of metsulfuron-methyl in water
CASELLI, Monica
2005
Abstract
Photodegradation of metsulfuron-methyl, a sulfonylurea herbicide, has been investigated in aqueous solution at different pH and excitation wavelengths. The efficiency of the process has been evaluated through quantum yield determinations. The identification of the photoproducts indicates that the major photochemical pathway is initiated by C-S bond dissociation followed by involvement of water to yield the main final products; the behaviour in water is shown to differ markedly from that in an organic environment. © 2004 Elsevier Ltd. All rights reserved.
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