Abstract:
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
Registro:
Documento: |
Artículo
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Título: | Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry |
Autor: | Pedre, I.; Battaglini, F.; González, G.A. |
Filiación: | INQUIMAE – Departamento de Química Inorgánica, Analítica y Química Física –, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires –, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, 1428, Argentina
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Palabras clave: | Effluents; electrochemical impedance spectroscopy; flotation; mineral samples; xanthate |
Año: | 2018
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Volumen: | 30
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Número: | 11
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Página de inicio: | 2589
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Página de fin: | 2596
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DOI: |
http://dx.doi.org/10.1002/elan.201800419 |
Título revista: | Electroanalysis
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Título revista abreviado: | Electroanalysis
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ISSN: | 10400397
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CODEN: | ELANE
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10400397_v30_n11_p2589_Pedre |
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Citas:
---------- APA ----------
Pedre, I., Battaglini, F. & González, G.A.
(2018)
. Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry. Electroanalysis, 30(11), 2589-2596.
http://dx.doi.org/10.1002/elan.201800419---------- CHICAGO ----------
Pedre, I., Battaglini, F., González, G.A.
"Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry"
. Electroanalysis 30, no. 11
(2018) : 2589-2596.
http://dx.doi.org/10.1002/elan.201800419---------- MLA ----------
Pedre, I., Battaglini, F., González, G.A.
"Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry"
. Electroanalysis, vol. 30, no. 11, 2018, pp. 2589-2596.
http://dx.doi.org/10.1002/elan.201800419---------- VANCOUVER ----------
Pedre, I., Battaglini, F., González, G.A. Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry. Electroanalysis. 2018;30(11):2589-2596.
http://dx.doi.org/10.1002/elan.201800419