Composite planar electrode for sensing electrochemical oxygen demand

Jahir Orozco; César Fernández-Sánchez; Ernest Mendoza; Mireia Baeza; Francisco Céspedes; Cecilia Jiménez-Jorquera

doi:https://doi.org/10.1016/j.aca.2007.11.037

Composite planar electrode for sensing electrochemical oxygen demand

Jahir Orozco, César Fernández-Sánchez, Ernest Mendoza, Mireia Baeza, Francisco Céspedes, Cecilia Jiménez-Jorquera

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

35 Citations (Scopus)

Abstract

This work reports on the development of a graphite-polystyrene composite electrode of planar configuration, containing silver(II) oxide and copper(II) oxide catalysts (AgO-CuO), for the measurement of electrochemical oxygen demand (EOD). Optimisation studies of the composite composition as well as conditions for its processing on planar substrates and generation of an appropriate electrochemical active area resulted in the scalable fabrication of robust composite electrodes. These were evaluated with glucose as target analyte. They showed competitive low limits of detection in a linear concentration range from 5 mg L-1 to 1400 mg L-1 of O2. Besides, they were stable for at least one year. The determination of EOD in wastewater samples coming from production lines of parenteral food and winemaking was successfully carried out. © 2006.

Original language	English
Pages (from-to)	176-182
Journal	Analytica Chimica Acta
Volume	607
DOIs	https://doi.org/10.1016/j.aca.2007.11.037
Publication status	Published - 28 Jan 2008

Keywords

AgO/CuO catalysts
Carbon-polystyrene composite
Electrochemical oxygen demand
Planar electrode

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https://doi.org/10.1016/j.aca.2007.11.037

Cite this

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title = "Composite planar electrode for sensing electrochemical oxygen demand",

abstract = "This work reports on the development of a graphite-polystyrene composite electrode of planar configuration, containing silver(II) oxide and copper(II) oxide catalysts (AgO-CuO), for the measurement of electrochemical oxygen demand (EOD). Optimisation studies of the composite composition as well as conditions for its processing on planar substrates and generation of an appropriate electrochemical active area resulted in the scalable fabrication of robust composite electrodes. These were evaluated with glucose as target analyte. They showed competitive low limits of detection in a linear concentration range from 5 mg L-1 to 1400 mg L-1 of O2. Besides, they were stable for at least one year. The determination of EOD in wastewater samples coming from production lines of parenteral food and winemaking was successfully carried out. {\textcopyright} 2006.",

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TY - JOUR

T1 - Composite planar electrode for sensing electrochemical oxygen demand

AU - Orozco, Jahir

AU - Fernández-Sánchez, César

AU - Mendoza, Ernest

AU - Baeza, Mireia

AU - Céspedes, Francisco

AU - Jiménez-Jorquera, Cecilia

PY - 2008/1/28

Y1 - 2008/1/28

N2 - This work reports on the development of a graphite-polystyrene composite electrode of planar configuration, containing silver(II) oxide and copper(II) oxide catalysts (AgO-CuO), for the measurement of electrochemical oxygen demand (EOD). Optimisation studies of the composite composition as well as conditions for its processing on planar substrates and generation of an appropriate electrochemical active area resulted in the scalable fabrication of robust composite electrodes. These were evaluated with glucose as target analyte. They showed competitive low limits of detection in a linear concentration range from 5 mg L-1 to 1400 mg L-1 of O2. Besides, they were stable for at least one year. The determination of EOD in wastewater samples coming from production lines of parenteral food and winemaking was successfully carried out. © 2006.

AB - This work reports on the development of a graphite-polystyrene composite electrode of planar configuration, containing silver(II) oxide and copper(II) oxide catalysts (AgO-CuO), for the measurement of electrochemical oxygen demand (EOD). Optimisation studies of the composite composition as well as conditions for its processing on planar substrates and generation of an appropriate electrochemical active area resulted in the scalable fabrication of robust composite electrodes. These were evaluated with glucose as target analyte. They showed competitive low limits of detection in a linear concentration range from 5 mg L-1 to 1400 mg L-1 of O2. Besides, they were stable for at least one year. The determination of EOD in wastewater samples coming from production lines of parenteral food and winemaking was successfully carried out. © 2006.

KW - AgO/CuO catalysts

KW - Carbon-polystyrene composite

KW - Electrochemical oxygen demand

KW - Planar electrode

U2 - https://doi.org/10.1016/j.aca.2007.11.037

DO - https://doi.org/10.1016/j.aca.2007.11.037

M3 - Article

SN - 0003-2670

VL - 607

SP - 176

EP - 182

JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

ER -

Composite planar electrode for sensing electrochemical oxygen demand

Abstract

Keywords

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