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Square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations

The pesticide diazinon was determined in its insecticidal formulations by square wave adsorptive stripping voltammetry. The method of its determination is based on the irreversible reduction reaction at the hanging mercury drop electrode. The optimal signal was detected at −1.05 V vs. Ag/AgCl in Bri...

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Autores principales: Guziejewski, Dariusz, Skrzypek, Sławomira, Ciesielski, Witold
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463801/
https://www.ncbi.nlm.nih.gov/pubmed/22083402
http://dx.doi.org/10.1007/s10661-011-2442-7
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author Guziejewski, Dariusz
Skrzypek, Sławomira
Ciesielski, Witold
author_facet Guziejewski, Dariusz
Skrzypek, Sławomira
Ciesielski, Witold
author_sort Guziejewski, Dariusz
collection PubMed
description The pesticide diazinon was determined in its insecticidal formulations by square wave adsorptive stripping voltammetry. The method of its determination is based on the irreversible reduction reaction at the hanging mercury drop electrode. The optimal signal was detected at −1.05 V vs. Ag/AgCl in Britton–Robinson buffer at pH 4.4. Various parameters such as pH, buffer concentration, frequency, amplitude, step potential, accumulation time, and potential were investigated to enhance the sensitivity of the determination. The highest response was recorded at an accumulation potential −0.4 V, accumulation time 60 s, amplitude 75 mV, frequency 100 Hz, and step potential 5 mV. The pesticide electrochemical behavior was considered under experimental conditions. The electroanalytical procedure enabled diazinon determination in the concentration range 4.0 × 10(−8)–3.9 × 10(−7) mol L(−1) in supporting electrolyte. The detection and quantification limit were found to be 1.1 × 10(−8) and 3.7 × 10(−8) mol L(−1), respectively. The method was applied successfully in the determination of the active ingredients in the insecticidal formulations Diazinon 10GR and Beaphar 275.
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spelling pubmed-34638012012-10-04 Square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations Guziejewski, Dariusz Skrzypek, Sławomira Ciesielski, Witold Environ Monit Assess Article The pesticide diazinon was determined in its insecticidal formulations by square wave adsorptive stripping voltammetry. The method of its determination is based on the irreversible reduction reaction at the hanging mercury drop electrode. The optimal signal was detected at −1.05 V vs. Ag/AgCl in Britton–Robinson buffer at pH 4.4. Various parameters such as pH, buffer concentration, frequency, amplitude, step potential, accumulation time, and potential were investigated to enhance the sensitivity of the determination. The highest response was recorded at an accumulation potential −0.4 V, accumulation time 60 s, amplitude 75 mV, frequency 100 Hz, and step potential 5 mV. The pesticide electrochemical behavior was considered under experimental conditions. The electroanalytical procedure enabled diazinon determination in the concentration range 4.0 × 10(−8)–3.9 × 10(−7) mol L(−1) in supporting electrolyte. The detection and quantification limit were found to be 1.1 × 10(−8) and 3.7 × 10(−8) mol L(−1), respectively. The method was applied successfully in the determination of the active ingredients in the insecticidal formulations Diazinon 10GR and Beaphar 275. Springer Netherlands 2011-11-15 2012 /pmc/articles/PMC3463801/ /pubmed/22083402 http://dx.doi.org/10.1007/s10661-011-2442-7 Text en © The Author(s) 2011 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Article
Guziejewski, Dariusz
Skrzypek, Sławomira
Ciesielski, Witold
Square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations
title Square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations
title_full Square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations
title_fullStr Square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations
title_full_unstemmed Square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations
title_short Square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations
title_sort square wave adsorptive stripping voltammetric determination of diazinon in its insecticidal formulations
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463801/
https://www.ncbi.nlm.nih.gov/pubmed/22083402
http://dx.doi.org/10.1007/s10661-011-2442-7
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