Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications

Autores
Saavedra Olaya, Albert Ulises; Donati, Edgardo Ruben; Corton, Eduardo
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Iron ions are monitored in processes such as bio-leaching, bio-oxidation, ferric leaching, passivation control, and others. The role of iron in different hydrometallurgy processes is very important because it affects strongly several industrial ore production, as chalcopyrite cooper extraction. In this work we present an amperometric FIA system that allows rapid quantification and speciation of iron in bio-mining processes. Linearity range, passivation of the working electrode and interferences were studied. We found a useful lineal range from 10 to 1500 mg L−1 for each of the ions, with a detection limit (Fe2+ and Fe3+) determined at 15 ± 2 mg L−1. High copper concentrations could interfere with the amperometric readings, though not in the copper/iron relationship encountered in this industry. Real samples, including an acid mine drainage sample, and the monitoring of the bio-oxidation kinetics of iron by Acidithiobacillus ferrooxidans were also quantified. In all cases, our results were compared with a standard colorimetric method that allows iron speciation (1,10-phenanthroline), showing good agreement between both methods. The electrochemical method presented here allows high sample throughput (ca. 45 samples h−1), fast analysis (ca. 1 min), and reagent free quantification of total iron, ferric and ferrous ions.
Fil: Saavedra Olaya, Albert Ulises. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; Argentina
Fil: Corton, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Materia
Acidithiobacillus Ferrooxidans
Bio-Hydrometallurgic
Electrochemistry
Ferric And Ferrous Ion
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/48384
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/48384
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applicationsSaavedra Olaya, Albert UlisesDonati, Edgardo RubenCorton, EduardoAcidithiobacillus FerrooxidansBio-HydrometallurgicElectrochemistryFerric And Ferrous Ionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Iron ions are monitored in processes such as bio-leaching, bio-oxidation, ferric leaching, passivation control, and others. The role of iron in different hydrometallurgy processes is very important because it affects strongly several industrial ore production, as chalcopyrite cooper extraction. In this work we present an amperometric FIA system that allows rapid quantification and speciation of iron in bio-mining processes. Linearity range, passivation of the working electrode and interferences were studied. We found a useful lineal range from 10 to 1500 mg L−1 for each of the ions, with a detection limit (Fe2+ and Fe3+) determined at 15 ± 2 mg L−1. High copper concentrations could interfere with the amperometric readings, though not in the copper/iron relationship encountered in this industry. Real samples, including an acid mine drainage sample, and the monitoring of the bio-oxidation kinetics of iron by Acidithiobacillus ferrooxidans were also quantified. In all cases, our results were compared with a standard colorimetric method that allows iron speciation (1,10-phenanthroline), showing good agreement between both methods. The electrochemical method presented here allows high sample throughput (ca. 45 samples h−1), fast analysis (ca. 1 min), and reagent free quantification of total iron, ferric and ferrous ions.Fil: Saavedra Olaya, Albert Ulises. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; ArgentinaFil: Corton, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaElsevier Science Sa2015-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/48384Saavedra Olaya, Albert Ulises; Donati, Edgardo Ruben; Corton, Eduardo; Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications; Elsevier Science Sa; Sensors and Actuators B: Chemical; 220; 12-2015; 448-4550925-40051873-3077CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400515007303info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2015.05.101info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:07:30Zoai:ri.conicet.gov.ar:11336/48384instacron: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:34982025-09-03 10:07:31.306CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
title Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
spellingShingle Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
Saavedra Olaya, Albert Ulises
Acidithiobacillus Ferrooxidans
Bio-Hydrometallurgic
Electrochemistry
Ferric And Ferrous Ion
title_short Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
title_full Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
title_fullStr Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
title_full_unstemmed Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
title_sort Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
dc.creator.none.fl_str_mv Saavedra Olaya, Albert Ulises
Donati, Edgardo Ruben
Corton, Eduardo
author Saavedra Olaya, Albert Ulises
author_facet Saavedra Olaya, Albert Ulises
Donati, Edgardo Ruben
Corton, Eduardo
author_role author
author2 Donati, Edgardo Ruben
Corton, Eduardo
author2_role author
author
dc.subject.none.fl_str_mv Acidithiobacillus Ferrooxidans
Bio-Hydrometallurgic
Electrochemistry
Ferric And Ferrous Ion
topic Acidithiobacillus Ferrooxidans
Bio-Hydrometallurgic
Electrochemistry
Ferric And Ferrous Ion
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Iron ions are monitored in processes such as bio-leaching, bio-oxidation, ferric leaching, passivation control, and others. The role of iron in different hydrometallurgy processes is very important because it affects strongly several industrial ore production, as chalcopyrite cooper extraction. In this work we present an amperometric FIA system that allows rapid quantification and speciation of iron in bio-mining processes. Linearity range, passivation of the working electrode and interferences were studied. We found a useful lineal range from 10 to 1500 mg L−1 for each of the ions, with a detection limit (Fe2+ and Fe3+) determined at 15 ± 2 mg L−1. High copper concentrations could interfere with the amperometric readings, though not in the copper/iron relationship encountered in this industry. Real samples, including an acid mine drainage sample, and the monitoring of the bio-oxidation kinetics of iron by Acidithiobacillus ferrooxidans were also quantified. In all cases, our results were compared with a standard colorimetric method that allows iron speciation (1,10-phenanthroline), showing good agreement between both methods. The electrochemical method presented here allows high sample throughput (ca. 45 samples h−1), fast analysis (ca. 1 min), and reagent free quantification of total iron, ferric and ferrous ions.
Fil: Saavedra Olaya, Albert Ulises. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Donati, Edgardo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Fermentaciones Industriales. Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Fermentaciones Industriales; Argentina
Fil: Corton, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
description Iron ions are monitored in processes such as bio-leaching, bio-oxidation, ferric leaching, passivation control, and others. The role of iron in different hydrometallurgy processes is very important because it affects strongly several industrial ore production, as chalcopyrite cooper extraction. In this work we present an amperometric FIA system that allows rapid quantification and speciation of iron in bio-mining processes. Linearity range, passivation of the working electrode and interferences were studied. We found a useful lineal range from 10 to 1500 mg L−1 for each of the ions, with a detection limit (Fe2+ and Fe3+) determined at 15 ± 2 mg L−1. High copper concentrations could interfere with the amperometric readings, though not in the copper/iron relationship encountered in this industry. Real samples, including an acid mine drainage sample, and the monitoring of the bio-oxidation kinetics of iron by Acidithiobacillus ferrooxidans were also quantified. In all cases, our results were compared with a standard colorimetric method that allows iron speciation (1,10-phenanthroline), showing good agreement between both methods. The electrochemical method presented here allows high sample throughput (ca. 45 samples h−1), fast analysis (ca. 1 min), and reagent free quantification of total iron, ferric and ferrous ions.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
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/11336/48384
Saavedra Olaya, Albert Ulises; Donati, Edgardo Ruben; Corton, Eduardo; Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications; Elsevier Science Sa; Sensors and Actuators B: Chemical; 220; 12-2015; 448-455
0925-4005
1873-3077
CONICET Digital
CONICET
url http://hdl.handle.net/11336/48384
identifier_str_mv Saavedra Olaya, Albert Ulises; Donati, Edgardo Ruben; Corton, Eduardo; Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications; Elsevier Science Sa; Sensors and Actuators B: Chemical; 220; 12-2015; 448-455
0925-4005
1873-3077
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925400515007303
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2015.05.101
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
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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score 13.13397

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