Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry

Xanthate is a widely used reagent in sulfide mineral flotation. A simple and reliable method is presented for the direct monitoring of xanthate in flotation baths and their effluents, as a tool for their reconditioning, and reducing their environmental impact. For this purpose, screen-printed graphi...

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Detalles Bibliográficos
Publicado: 2018
Materias:
Effluents
electrochemical impedance spectroscopy
flotation
mineral samples
xanthate
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10400397_v30_n11_p2589_Pedre
http://hdl.handle.net/20.500.12110/paper_10400397_v30_n11_p2589_Pedre
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10400397_v30_n11_p2589_Pedre
record_format dspace
spelling paper:paper_10400397_v30_n11_p2589_Pedre2023-06-08T16:00:40Z Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry Effluents electrochemical impedance spectroscopy flotation mineral samples xanthate Xanthate is a widely used reagent in sulfide mineral flotation. A simple and reliable method is presented for the direct monitoring of xanthate in flotation baths and their effluents, as a tool for their reconditioning, and reducing their environmental impact. For this purpose, screen-printed graphite electrodes (SPE) were modified with a polyelectrolyte-surfactant matrix which was able to adsorb the xanthate, whose concentration is determined by electrochemical impedance spectroscopy (EIS) following the change in the electron transfer resistance of ferrocyanide after a pre-oxidation treatment. Linear ranges from 0.25 to 1 μM and 15 to 100 μM were determined for effluents and flotation baths, respectively. A mechanism for the electron transfer process is proposed based on Quartz crystal microbalance, IR and cyclic voltammetry studies. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10400397_v30_n11_p2589_Pedre http://hdl.handle.net/20.500.12110/paper_10400397_v30_n11_p2589_Pedre
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Effluents
electrochemical impedance spectroscopy
flotation
mineral samples
xanthate
spellingShingle Effluents
electrochemical impedance spectroscopy
flotation
mineral samples
xanthate
Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry
topic_facet Effluents
electrochemical impedance spectroscopy
flotation
mineral samples
xanthate
description Xanthate is a widely used reagent in sulfide mineral flotation. A simple and reliable method is presented for the direct monitoring of xanthate in flotation baths and their effluents, as a tool for their reconditioning, and reducing their environmental impact. For this purpose, screen-printed graphite electrodes (SPE) were modified with a polyelectrolyte-surfactant matrix which was able to adsorb the xanthate, whose concentration is determined by electrochemical impedance spectroscopy (EIS) following the change in the electron transfer resistance of ferrocyanide after a pre-oxidation treatment. Linear ranges from 0.25 to 1 μM and 15 to 100 μM were determined for effluents and flotation baths, respectively. A mechanism for the electron transfer process is proposed based on Quartz crystal microbalance, IR and cyclic voltammetry studies. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
title Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry
title_short Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry
title_full Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry
title_fullStr Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry
title_full_unstemmed Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry
title_sort disposable electrochemical sensor for rapid determination of ethyl xanthate in the mining industry
publishDate 2018
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10400397_v30_n11_p2589_Pedre
http://hdl.handle.net/20.500.12110/paper_10400397_v30_n11_p2589_Pedre
_version_ 1768546407262715904

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