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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2011
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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. |
format | Online Article Text |
id | pubmed-3463801 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
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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