Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film

Autores
Fernández, Lenys; Espinoza Montero, Patricio; Sánchez Sarango, Mireya; Bolaños Méndez, Diego; Alvarez Paguay, Jocelyne Carolina; Domínguez Granda, Luis; Rodríguez Carrillo, Augusto Manuel; Romero, Hugo; Debut, Alexis; Ortiz, Vladimir
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Marine sediments are a useful environmental assessment matrix as they naturally trap toxic substances of anthropogenic origin and thus have higher concentrations of these than the surrounding water. Therefore, developing methods for the sensitive, accurate, and inexpensive quantification of these substances is important, as the traditional techniques have various disadvantages. The current study evaluated the effectiveness of an in situ bismuth-modified carbon-fiber microelectrode (voltamperometric sensor) to simultaneously detect Pb, Cd, and Zn in marine sediments from Puerto Jeli in El Oro Province, Ecuador. This site is representative of the contamination levels present along the coast in this province. Differential pulse anodic stripping voltammetry was applied, and the resulting linear regression for the metal quantification ranged from 12 to 50 μg mL−1, with quantification limits for Pb(II), Cd(II), and Zn(II) of 18.69, 12.55, and 19.29 μg mL−1, respectively. Thus, the quantification with the sensor was successful. According to the preliminary results, Cd and Pb values exceeded the permissible limits established by Ecuador (Texto Unificado de la Legislación Secundaria del Ministerio del Ambiente) and the US Environmental Protection Agency, respectively.
Fil: Fernández, Lenys. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Espinoza Montero, Patricio. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Sánchez Sarango, Mireya. Universidad Técnica de Cotopaxi; Ecuador
Fil: Bolaños Méndez, Diego. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Alvarez Paguay, Jocelyne Carolina. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Domínguez Granda, Luis. No especifíca;
Fil: Rodríguez Carrillo, Augusto Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Romero, Hugo. Universidad Técnica de Machala; Ecuador
Fil: Debut, Alexis. Universidad de Las Fuerzas Armadas; Ecuador
Fil: Ortiz, Vladimir. Universidad Técnica de Cotopaxi; Ecuador
Materia
QUANTIFICATION
MARINE SEDIMENTS
CARBON-FIBER
MICROELECTRODE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/226954
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth filmFernández, LenysEspinoza Montero, PatricioSánchez Sarango, MireyaBolaños Méndez, DiegoAlvarez Paguay, Jocelyne CarolinaDomínguez Granda, LuisRodríguez Carrillo, Augusto ManuelRomero, HugoDebut, AlexisOrtiz, VladimirQUANTIFICATIONMARINE SEDIMENTSCARBON-FIBERMICROELECTRODEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Marine sediments are a useful environmental assessment matrix as they naturally trap toxic substances of anthropogenic origin and thus have higher concentrations of these than the surrounding water. Therefore, developing methods for the sensitive, accurate, and inexpensive quantification of these substances is important, as the traditional techniques have various disadvantages. The current study evaluated the effectiveness of an in situ bismuth-modified carbon-fiber microelectrode (voltamperometric sensor) to simultaneously detect Pb, Cd, and Zn in marine sediments from Puerto Jeli in El Oro Province, Ecuador. This site is representative of the contamination levels present along the coast in this province. Differential pulse anodic stripping voltammetry was applied, and the resulting linear regression for the metal quantification ranged from 12 to 50 μg mL−1, with quantification limits for Pb(II), Cd(II), and Zn(II) of 18.69, 12.55, and 19.29 μg mL−1, respectively. Thus, the quantification with the sensor was successful. According to the preliminary results, Cd and Pb values exceeded the permissible limits established by Ecuador (Texto Unificado de la Legislación Secundaria del Ministerio del Ambiente) and the US Environmental Protection Agency, respectively.Fil: Fernández, Lenys. Pontificia Universidad Católica del Ecuador; EcuadorFil: Espinoza Montero, Patricio. Pontificia Universidad Católica del Ecuador; EcuadorFil: Sánchez Sarango, Mireya. Universidad Técnica de Cotopaxi; EcuadorFil: Bolaños Méndez, Diego. Pontificia Universidad Católica del Ecuador; EcuadorFil: Alvarez Paguay, Jocelyne Carolina. Pontificia Universidad Católica del Ecuador; EcuadorFil: Domínguez Granda, Luis. No especifíca;Fil: Rodríguez Carrillo, Augusto Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Romero, Hugo. Universidad Técnica de Machala; EcuadorFil: Debut, Alexis. Universidad de Las Fuerzas Armadas; EcuadorFil: Ortiz, Vladimir. Universidad Técnica de Cotopaxi; EcuadorNature2023-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/226954Fernández, Lenys; Espinoza Montero, Patricio; Sánchez Sarango, Mireya; Bolaños Méndez, Diego; Alvarez Paguay, Jocelyne Carolina; et al.; Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film; Nature; Scientific Reports; 13; 1; 12-2023; 1-102045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-023-47526-6info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:22:34Zoai:ri.conicet.gov.ar:11336/226954instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:22:34.575CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film
title Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film
spellingShingle Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film
Fernández, Lenys
QUANTIFICATION
MARINE SEDIMENTS
CARBON-FIBER
MICROELECTRODE
title_short Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film
title_full Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film
title_fullStr Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film
title_full_unstemmed Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film
title_sort Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film
dc.creator.none.fl_str_mv Fernández, Lenys
Espinoza Montero, Patricio
Sánchez Sarango, Mireya
Bolaños Méndez, Diego
Alvarez Paguay, Jocelyne Carolina
Domínguez Granda, Luis
Rodríguez Carrillo, Augusto Manuel
Romero, Hugo
Debut, Alexis
Ortiz, Vladimir
author Fernández, Lenys
author_facet Fernández, Lenys
Espinoza Montero, Patricio
Sánchez Sarango, Mireya
Bolaños Méndez, Diego
Alvarez Paguay, Jocelyne Carolina
Domínguez Granda, Luis
Rodríguez Carrillo, Augusto Manuel
Romero, Hugo
Debut, Alexis
Ortiz, Vladimir
author_role author
author2 Espinoza Montero, Patricio
Sánchez Sarango, Mireya
Bolaños Méndez, Diego
Alvarez Paguay, Jocelyne Carolina
Domínguez Granda, Luis
Rodríguez Carrillo, Augusto Manuel
Romero, Hugo
Debut, Alexis
Ortiz, Vladimir
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv QUANTIFICATION
MARINE SEDIMENTS
CARBON-FIBER
MICROELECTRODE
topic QUANTIFICATION
MARINE SEDIMENTS
CARBON-FIBER
MICROELECTRODE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Marine sediments are a useful environmental assessment matrix as they naturally trap toxic substances of anthropogenic origin and thus have higher concentrations of these than the surrounding water. Therefore, developing methods for the sensitive, accurate, and inexpensive quantification of these substances is important, as the traditional techniques have various disadvantages. The current study evaluated the effectiveness of an in situ bismuth-modified carbon-fiber microelectrode (voltamperometric sensor) to simultaneously detect Pb, Cd, and Zn in marine sediments from Puerto Jeli in El Oro Province, Ecuador. This site is representative of the contamination levels present along the coast in this province. Differential pulse anodic stripping voltammetry was applied, and the resulting linear regression for the metal quantification ranged from 12 to 50 μg mL−1, with quantification limits for Pb(II), Cd(II), and Zn(II) of 18.69, 12.55, and 19.29 μg mL−1, respectively. Thus, the quantification with the sensor was successful. According to the preliminary results, Cd and Pb values exceeded the permissible limits established by Ecuador (Texto Unificado de la Legislación Secundaria del Ministerio del Ambiente) and the US Environmental Protection Agency, respectively.
Fil: Fernández, Lenys. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Espinoza Montero, Patricio. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Sánchez Sarango, Mireya. Universidad Técnica de Cotopaxi; Ecuador
Fil: Bolaños Méndez, Diego. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Alvarez Paguay, Jocelyne Carolina. Pontificia Universidad Católica del Ecuador; Ecuador
Fil: Domínguez Granda, Luis. No especifíca;
Fil: Rodríguez Carrillo, Augusto Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Romero, Hugo. Universidad Técnica de Machala; Ecuador
Fil: Debut, Alexis. Universidad de Las Fuerzas Armadas; Ecuador
Fil: Ortiz, Vladimir. Universidad Técnica de Cotopaxi; Ecuador
description Marine sediments are a useful environmental assessment matrix as they naturally trap toxic substances of anthropogenic origin and thus have higher concentrations of these than the surrounding water. Therefore, developing methods for the sensitive, accurate, and inexpensive quantification of these substances is important, as the traditional techniques have various disadvantages. The current study evaluated the effectiveness of an in situ bismuth-modified carbon-fiber microelectrode (voltamperometric sensor) to simultaneously detect Pb, Cd, and Zn in marine sediments from Puerto Jeli in El Oro Province, Ecuador. This site is representative of the contamination levels present along the coast in this province. Differential pulse anodic stripping voltammetry was applied, and the resulting linear regression for the metal quantification ranged from 12 to 50 μg mL−1, with quantification limits for Pb(II), Cd(II), and Zn(II) of 18.69, 12.55, and 19.29 μg mL−1, respectively. Thus, the quantification with the sensor was successful. According to the preliminary results, Cd and Pb values exceeded the permissible limits established by Ecuador (Texto Unificado de la Legislación Secundaria del Ministerio del Ambiente) and the US Environmental Protection Agency, respectively.
publishDate 2023
dc.date.none.fl_str_mv 2023-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/226954
Fernández, Lenys; Espinoza Montero, Patricio; Sánchez Sarango, Mireya; Bolaños Méndez, Diego; Alvarez Paguay, Jocelyne Carolina; et al.; Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film; Nature; Scientific Reports; 13; 1; 12-2023; 1-10
2045-2322
CONICET Digital
CONICET
url http://hdl.handle.net/11336/226954
identifier_str_mv Fernández, Lenys; Espinoza Montero, Patricio; Sánchez Sarango, Mireya; Bolaños Méndez, Diego; Alvarez Paguay, Jocelyne Carolina; et al.; Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film; Nature; Scientific Reports; 13; 1; 12-2023; 1-10
2045-2322
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-023-47526-6
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Nature
publisher.none.fl_str_mv Nature
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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