alexa Dissipation Behavior of 14C-Deltamethrin in Egyptian Soil Columns in Absence and Presence of Chlorpyrifos under Subtropical Conditions
ISSN: 2380-2391

Journal of Environmental Analytical Chemistry
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Research Article

Dissipation Behavior of 14C-Deltamethrin in Egyptian Soil Columns in Absence and Presence of Chlorpyrifos under Subtropical Conditions

Zayed SMAD, Farghaly M and Soliman SM*

Department of Applied Organic Chemistry, National Research Centre, Dokki, Cairo, Egypt

*Corresponding Author:
Soliman SM
Department of Applied Organic Chemistry
National Research Centre
Dokki, Cairo, Egypt
Tel: 02 33371615
Fax: 33371635
E-mail: [email protected]

Received Date: November 03, 2014; Accepted Date: December 26, 2014; Published Date: December 29, 2014

Citation: Zayed SMAD, Farghaly M, Soliman SM (2014) Dissipation Behavior of 14C-Deltamethrin in Egyptian SoilColumns in Absence and Presence of Chlorpyrifos under Subtropical Conditions. J Environ Anal Chem 2:126. doi: 10.4172/2380-2391.1000126

Copyright: © 2014 Zayed SMAD, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

The dissipation of deltamethrin in silt clay under subtropical climate conditions was studied.14C- Deltamethrin labeled at gem–dimethyl groups of cyclopropane ring was used alone in one sets of columns and in presence of chloropyrifos in the other sets and kept under field conditions for eleven months. Radioactivity was concentrated in the upper zone of the columns 0-10 cm. The total dissipation of the insecticide amounted to 31%; 52% of the applied dose in silt clay soil in absence and presence of chlorpyrifos, respectively. The soil binding capacity increased with time whereby the extractable 14C-residues simultaneously decreased. The nature of methanolic extract of soils was determined by chromatographic analysis. Deltamethrin was the main degradation product of the extractable residues in addition to 3-phenoxybenzaldehyde, 3-phenoxybenzoic acid and 3-phenoxybenzyl alcohol.

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