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

Chemistry

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