Electroanalytical Determination of Fenthion in Passiflora alata Tincture Samples

<p>In this work a direct, simple, fast and sensitive method to determine Fenthion was developed using a Boron-Doped Diamond Electrode and Square Wave Voltammetry. The method was applied into <em>Passiflora alata</em> herbal medicinal tinctures derivate from passion fruits. None pre...

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Main Authors: Rafaela Ferreira França, Thays De Souza Lima, Fábio Ruiz Simões, Lucia Codognoto
Format: Article
Language:English
Published: Universidade Federal de Mato Grosso do Sul 2018-04-01
Series:Orbital: The Electronic Journal of Chemistry
Subjects:
Online Access:http://orbital.ufms.br/index.php/Chemistry/article/view/1077
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spelling doaj-041ff167d4c64a559848ec4e0e8615c02021-07-07T19:22:33ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282018-04-01102929710.17807/orbital.v10i2.1077473Electroanalytical Determination of Fenthion in Passiflora alata Tincture SamplesRafaela Ferreira FrançaThays De Souza LimaFábio Ruiz SimõesLucia Codognoto<p>In this work a direct, simple, fast and sensitive method to determine Fenthion was developed using a Boron-Doped Diamond Electrode and Square Wave Voltammetry. The method was applied into <em>Passiflora alata</em> herbal medicinal tinctures derivate from passion fruits. None previous treatment such as derivation or pre-concentration of the analyte was done. Cyclic Voltammetry results showed well defined irreversible oxidation peaks at around 1.27 V into the pH range of 2.0 to 8.0. Square Wave Voltammetry was used to analytical determination and the analysis parameters, such as frequency, amplitude and pH from support electrolyte were optimized. A calibration curve was obtained, and it was observed a sensitivity of 0.38 A/mol L<sup>-1 </sup>and linearity of 0.995. The limits of detection and quantification were 8.0x10<sup>-8</sup> mol L<sup>-1</sup> (21 mg L<sup>-1</sup>) and 2.5x10<sup>-7</sup> mol L<sup>-1</sup> (70 mg L<sup>-1</sup>), respectively. Recovery studies were applied using <em>Passiflora alata</em> samples fortified with Fenthion in concentrations of 2.5 µmol L<sup>-1</sup>and 4.0 µmol L<sup>-1</sup>, followed by the standard addition of the pesticide aliquots. It was observed that the complex matrix does not interferes in the method. The recovery results were about 98.4 and 112.0%, reinforcing that the method is suitable to determine the analyte in target complexes samples, such as Herbal Medicinal Plants.</p><p> </p><p>DOI: <a href="http://dx.doi.org/10.17807/orbital.v10i2.1077">http://dx.doi.org/10.17807/orbital.v10i2.1077</a></p><p> </p>http://orbital.ufms.br/index.php/Chemistry/article/view/1077fenthionboron-doped diamond electrodesquare wave voltammetrymedicinal plants
collection DOAJ
language English
format Article
sources DOAJ
author Rafaela Ferreira França
Thays De Souza Lima
Fábio Ruiz Simões
Lucia Codognoto
spellingShingle Rafaela Ferreira França
Thays De Souza Lima
Fábio Ruiz Simões
Lucia Codognoto
Electroanalytical Determination of Fenthion in Passiflora alata Tincture Samples
Orbital: The Electronic Journal of Chemistry
fenthion
boron-doped diamond electrode
square wave voltammetry
medicinal plants
author_facet Rafaela Ferreira França
Thays De Souza Lima
Fábio Ruiz Simões
Lucia Codognoto
author_sort Rafaela Ferreira França
title Electroanalytical Determination of Fenthion in Passiflora alata Tincture Samples
title_short Electroanalytical Determination of Fenthion in Passiflora alata Tincture Samples
title_full Electroanalytical Determination of Fenthion in Passiflora alata Tincture Samples
title_fullStr Electroanalytical Determination of Fenthion in Passiflora alata Tincture Samples
title_full_unstemmed Electroanalytical Determination of Fenthion in Passiflora alata Tincture Samples
title_sort electroanalytical determination of fenthion in passiflora alata tincture samples
publisher Universidade Federal de Mato Grosso do Sul
series Orbital: The Electronic Journal of Chemistry
issn 1984-6428
publishDate 2018-04-01
description <p>In this work a direct, simple, fast and sensitive method to determine Fenthion was developed using a Boron-Doped Diamond Electrode and Square Wave Voltammetry. The method was applied into <em>Passiflora alata</em> herbal medicinal tinctures derivate from passion fruits. None previous treatment such as derivation or pre-concentration of the analyte was done. Cyclic Voltammetry results showed well defined irreversible oxidation peaks at around 1.27 V into the pH range of 2.0 to 8.0. Square Wave Voltammetry was used to analytical determination and the analysis parameters, such as frequency, amplitude and pH from support electrolyte were optimized. A calibration curve was obtained, and it was observed a sensitivity of 0.38 A/mol L<sup>-1 </sup>and linearity of 0.995. The limits of detection and quantification were 8.0x10<sup>-8</sup> mol L<sup>-1</sup> (21 mg L<sup>-1</sup>) and 2.5x10<sup>-7</sup> mol L<sup>-1</sup> (70 mg L<sup>-1</sup>), respectively. Recovery studies were applied using <em>Passiflora alata</em> samples fortified with Fenthion in concentrations of 2.5 µmol L<sup>-1</sup>and 4.0 µmol L<sup>-1</sup>, followed by the standard addition of the pesticide aliquots. It was observed that the complex matrix does not interferes in the method. The recovery results were about 98.4 and 112.0%, reinforcing that the method is suitable to determine the analyte in target complexes samples, such as Herbal Medicinal Plants.</p><p> </p><p>DOI: <a href="http://dx.doi.org/10.17807/orbital.v10i2.1077">http://dx.doi.org/10.17807/orbital.v10i2.1077</a></p><p> </p>
topic fenthion
boron-doped diamond electrode
square wave voltammetry
medicinal plants
url http://orbital.ufms.br/index.php/Chemistry/article/view/1077
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AT fabioruizsimoes electroanalyticaldeterminationoffenthioninpassifloraalatatincturesamples
AT luciacodognoto electroanalyticaldeterminationoffenthioninpassifloraalatatincturesamples
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