Dell'arciprete, ML.; Soler Escoda, JM.; Santos-Juanes Jordá, L.; Arques Sanz, A.; Martire, DO.; Furlong, JP.; González, MC. (2012). Reactivity of neonicotinoid insecticides with carbonate radicals. Water Research. 46(11):3476-3489. https://doi.org/10.1016/j.watres.2012.03.051
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/51002
Título:
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Reactivity of neonicotinoid insecticides with carbonate radicals
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Autor:
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Dell'Arciprete, Maria Laura
Soler Escoda, Juan Miguel
Santos-Juanes Jordá, Lucas
Arques Sanz, Antonio
Martire, Daniel O.
Furlong, Jorge P.
González, Mónica C.
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Entidad UPV:
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Universitat Politècnica de València. Grupo de Procesos de Oxidación Avanzada
Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera
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Fecha difusión:
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Resumen:
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The reaction of three chloronicotinoid insecticides, namely Imidacloprid (IMD), Thiacloprid (THIA) and Acetamiprid (ACT), with carbonate radicals (CO3 center dot-) was investigated. The second order rate constants (4 +/- ...[+]
The reaction of three chloronicotinoid insecticides, namely Imidacloprid (IMD), Thiacloprid (THIA) and Acetamiprid (ACT), with carbonate radicals (CO3 center dot-) was investigated. The second order rate constants (4 +/- 1) x 10(6), (2.8 +/- 0.5) x 10(5), and (1.5 +/- 1) x 10(5) M-1 s(-1) were determined for IMD, THIA and ACT, respectively. The absorption spectra of the organic intermediates formed after CO3 center dot- is approximately equal to attack to IMD is in line with those reported for alpha-aminoalkyl radicals. A reaction mechanism involving an initial charge transfer from the amidine nitrogen of the insecticides to CO3 center dot- is proposed and further supported by the identified reaction products. The pyridine moiety of the insecticides remains unaffected until nicotinic acid is formed. CO3 center dot- radical reactivity towards IMD, ACT, and THIA is low compared to that of HO center dot radicals, excited triplet states, and O-1(2), and is therefore little effective in depleting neonicotinoid insecticides. (C) 2012 Elsevier Ltd. All rights reserved.
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Palabras clave:
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Carbonate radicals
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Neonicotinoid insecticides
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Imidacloprid
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Thiacloprid
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Acetamiprid
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Alpha-Aminoalkyl radical
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Derechos de uso:
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Reserva de todos los derechos
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Fuente:
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Water Research. (issn:
0043-1354
)
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DOI:
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10.1016/j.watres.2012.03.051
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Editorial:
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Elsevier
IWA Publishing
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Versión del editor:
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http://dx.doi.org/10.1016/j.watres.2012.03.051
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Código del Proyecto:
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info:eu-repo/grantAgreement/MAEC//A%2F8199%2F07/
info:eu-repo/grantAgreement/ANPCyT//00308
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Descripción:
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“NOTICE: this is the author’s version of a work that was accepted for
publication in Water Research. Changes resulting from the
publishing process, such as peer review, editing, corrections,
structural formatting, and other quality control mechanisms may not be
reflected in this document. Changes may have been made to this work
since it was submitted for publication. A definitive version was
subsequently published in WATER RESEARCH, [VOL46, ISSUE11, jul 2012]
DOI10.1016/j.watres.2012.03.051¨
©IWA Publishing 2012. The definitive peer-reviewed and edited version of this
article is published in Water Research 46 11 3476-3489 2012 10.1016/j.watres.2012.03.051
and is available at www.iwapublishing.com
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Agradecimientos:
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This research was financially supported by Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Agencia Nacional de Promocion Cientifica y Tecnologica (Argentina, project PICT 2007 number 00308), and Agencia ...[+]
This research was financially supported by Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Agencia Nacional de Promocion Cientifica y Tecnologica (Argentina, project PICT 2007 number 00308), and Agencia Espanola de Cooperacion Internacional (project A/8199/07). M.L.D. thanks CONICET for a graduate studentship. M.C.G. is a research member of CONICET. D.O.M. is a research member of Comision de Investigaciones Cientificas de la Provincia de Buenos Aires (CIC), Argentina. L.S.J. acknowledges Ministerio de Ciencia e Innovacion for his Juan de la Cierva scholarship.
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Tipo:
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Artículo
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