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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/226954
Ver los metadatos del registro completo
id |
CONICETDig_87295054288c9457b38d9c617d80f30d |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/226954 |
network_acronym_str |
CONICETDig |
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 Técnicas2025-09-29T09:34:17Zoai: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:34982025-09-29 09:34:17.702CONICET 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 |
_version_ |
1844613060431446016 |
score |
13.070432 |