Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/03067319.2017.1291809 http://hdl.handle.net/11449/174245 |
Resumo: | An electrochemical sensor for the determination of 3,5,6-trichloro-2-pyridinol (TCP), the main metabolite of the pesticide chlorpyrifos, was herein developed. TCP has greater solubility than the source pesticide, and its occurrence in ground and surface water is more frequent and more dangerous. The sensor was fabricated using carbon paste modified with the inorganic complex chloro-5,10,15,20-tetrakis-(pentafluorophenyl)-21 H,23 H-porphyrin iron(III) (FeTPPCl); this metallic complex has a chemical core structure similar to the heme cofactor of the cytochrome P450 (CYPs). Measurements were performed with square-wave voltammetry. Using the optimised voltammetric parameters and without any sample preparation, the sensor showed a limit of detection of 2.8 mg L−1 (14 μmol L−1), recoveries ca. 102%, suitable selectivity and long durability (over 1 month). |
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Repositório Institucional da UNESP |
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spelling |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinolBiomimetic sensorelectroanalysisinsecticideIron porphyrin complexmodified carbon paste electrodeAn electrochemical sensor for the determination of 3,5,6-trichloro-2-pyridinol (TCP), the main metabolite of the pesticide chlorpyrifos, was herein developed. TCP has greater solubility than the source pesticide, and its occurrence in ground and surface water is more frequent and more dangerous. The sensor was fabricated using carbon paste modified with the inorganic complex chloro-5,10,15,20-tetrakis-(pentafluorophenyl)-21 H,23 H-porphyrin iron(III) (FeTPPCl); this metallic complex has a chemical core structure similar to the heme cofactor of the cytochrome P450 (CYPs). Measurements were performed with square-wave voltammetry. Using the optimised voltammetric parameters and without any sample preparation, the sensor showed a limit of detection of 2.8 mg L−1 (14 μmol L−1), recoveries ca. 102%, suitable selectivity and long durability (over 1 month).Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundação para a Ciência e a TecnologiaDepartamento de Química Analítica Instituto de Química UNESP-Univ Estadual PaulistaREQUIMTE/LAQV Departamento de Química e Bioquímica Faculdade de Ciências Universidade do Porto (FCUP)Departamento de Química Analítica Instituto de Química UNESP-Univ Estadual PaulistaCNPq: 153409/2010-0FAPESP: 2016/06926-0CNPq: 400459/2012-4Fundação para a Ciência e a Tecnologia: SFRH/BPD/76544/2011Universidade Estadual Paulista (Unesp)Universidade do Porto (FCUP)Santos, A. L. d. [UNESP]Batista, Elisete A. [UNESP]Gonçalves, Luís MoreiraSotomayor, Maria del Pilar T. [UNESP]2018-12-11T17:10:00Z2018-12-11T17:10:00Z2017-01-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article159-167application/pdfhttp://dx.doi.org/10.1080/03067319.2017.1291809International Journal of Environmental Analytical Chemistry, v. 97, n. 2, p. 159-167, 2017.1029-03970306-7319http://hdl.handle.net/11449/17424510.1080/03067319.2017.12918092-s2.0-850132241092-s2.0-85013224109.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal of Environmental Analytical Chemistry0,3610,361info:eu-repo/semantics/openAccess2023-10-30T06:05:45Zoai:repositorio.unesp.br:11449/174245Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:25:14.238550Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol |
title |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol |
spellingShingle |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol Santos, A. L. d. [UNESP] Biomimetic sensor electroanalysis insecticide Iron porphyrin complex modified carbon paste electrode |
title_short |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol |
title_full |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol |
title_fullStr |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol |
title_full_unstemmed |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol |
title_sort |
Modified carbon paste electrode for the electrochemical sensing of 3,5,6-trichloro-2-pyridinol |
author |
Santos, A. L. d. [UNESP] |
author_facet |
Santos, A. L. d. [UNESP] Batista, Elisete A. [UNESP] Gonçalves, Luís Moreira Sotomayor, Maria del Pilar T. [UNESP] |
author_role |
author |
author2 |
Batista, Elisete A. [UNESP] Gonçalves, Luís Moreira Sotomayor, Maria del Pilar T. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade do Porto (FCUP) |
dc.contributor.author.fl_str_mv |
Santos, A. L. d. [UNESP] Batista, Elisete A. [UNESP] Gonçalves, Luís Moreira Sotomayor, Maria del Pilar T. [UNESP] |
dc.subject.por.fl_str_mv |
Biomimetic sensor electroanalysis insecticide Iron porphyrin complex modified carbon paste electrode |
topic |
Biomimetic sensor electroanalysis insecticide Iron porphyrin complex modified carbon paste electrode |
description |
An electrochemical sensor for the determination of 3,5,6-trichloro-2-pyridinol (TCP), the main metabolite of the pesticide chlorpyrifos, was herein developed. TCP has greater solubility than the source pesticide, and its occurrence in ground and surface water is more frequent and more dangerous. The sensor was fabricated using carbon paste modified with the inorganic complex chloro-5,10,15,20-tetrakis-(pentafluorophenyl)-21 H,23 H-porphyrin iron(III) (FeTPPCl); this metallic complex has a chemical core structure similar to the heme cofactor of the cytochrome P450 (CYPs). Measurements were performed with square-wave voltammetry. Using the optimised voltammetric parameters and without any sample preparation, the sensor showed a limit of detection of 2.8 mg L−1 (14 μmol L−1), recoveries ca. 102%, suitable selectivity and long durability (over 1 month). |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-26 2018-12-11T17:10:00Z 2018-12-11T17:10:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1080/03067319.2017.1291809 International Journal of Environmental Analytical Chemistry, v. 97, n. 2, p. 159-167, 2017. 1029-0397 0306-7319 http://hdl.handle.net/11449/174245 10.1080/03067319.2017.1291809 2-s2.0-85013224109 2-s2.0-85013224109.pdf |
url |
http://dx.doi.org/10.1080/03067319.2017.1291809 http://hdl.handle.net/11449/174245 |
identifier_str_mv |
International Journal of Environmental Analytical Chemistry, v. 97, n. 2, p. 159-167, 2017. 1029-0397 0306-7319 10.1080/03067319.2017.1291809 2-s2.0-85013224109 2-s2.0-85013224109.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Journal of Environmental Analytical Chemistry 0,361 0,361 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
159-167 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128648297840640 |