Electroanalytical Methodology for the Direct Determination of 2,4-Dichlorophenoxyacetic Acid in Soil Samples Using a Graphite-Polyurethane Electrode
Joint Authors
Ramos de Andrade, Fernanda
Alves de Toledo, Renata
Manoel Pedro Vaz, Carlos
Source
International Journal of Electrochemistry
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-16
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
An electroanalytical methodology was developed for the direct determination of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) using a graphite-polyurethane composite electrode and square wave voltammetry (SWV).
2,4-D exhibited one reduction peak with characteristics of an irreversible process at −0.54 V (versus Ag/AgCl), which is controlled by the diffusion of the reagent on the electrode surface.
After the experimental parameters optimization (pH 2.0, f=50 s−1, a=0.50 V, and ΔEi=0.03 V), analytical curves were constructed in the range of 0.66 mg L−1 to 2.62 mg L−1.
Detection (LD) and quantification (LQ) limits were 17.6 μg L−1 and 58.6 μg L−1, respectively.
The methodology was successfully applied to measure the percolation of the herbicide 2,4-D in undisturbed soil columns of different granulometric compositions.
American Psychological Association (APA)
Ramos de Andrade, Fernanda& Alves de Toledo, Renata& Manoel Pedro Vaz, Carlos. 2014. Electroanalytical Methodology for the Direct Determination of 2,4-Dichlorophenoxyacetic Acid in Soil Samples Using a Graphite-Polyurethane Electrode. International Journal of Electrochemistry،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-462315
Modern Language Association (MLA)
Ramos de Andrade, Fernanda…[et al.]. Electroanalytical Methodology for the Direct Determination of 2,4-Dichlorophenoxyacetic Acid in Soil Samples Using a Graphite-Polyurethane Electrode. International Journal of Electrochemistry No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-462315
American Medical Association (AMA)
Ramos de Andrade, Fernanda& Alves de Toledo, Renata& Manoel Pedro Vaz, Carlos. Electroanalytical Methodology for the Direct Determination of 2,4-Dichlorophenoxyacetic Acid in Soil Samples Using a Graphite-Polyurethane Electrode. International Journal of Electrochemistry. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-462315
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-462315