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Introducing Graphene–Indium Oxide Electrochemical Sensor for Detecting Ethanol in Aqueous Samples with CCD-RSM Optimization.

Boroujerdi, R. and Paul, R., 2022. Introducing Graphene–Indium Oxide Electrochemical Sensor for Detecting Ethanol in Aqueous Samples with CCD-RSM Optimization. Chemosensors, 10 (2), 42.

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DOI: 10.3390/chemosensors10020042

Abstract

There is significant demand for portable sensors that can deliver selective and sensitive measurement of ethanol on-site. Such sensors have application across many industries, including clinical and forensic work as well as agricultural and environmental analysis. Here, we report a new graphene–indium oxide electrochemical sensor for the determination of ethanol in aqueous samples. Graphene layers were functionalised by anchoring In2O3 to its surface and the developed composite was used as a selective electrochemical sensor for sensing ethanol through cyclic voltammetry. The detection limit of the sensor was 0.068 mol/L and it showed a linear response to increasing ethanol in the environment up to 1.2 mol/L. The most significant parameters involved and their interactions in the response of the sensor and optimization procedures were studied using a four-factor central composite design (CCD) combined with response surface modelling (RSM). The sensor was applied in the detection of ethanol in authentic samples.

Item Type:Article
ISSN:2227-9040
Additional Information:(This article belongs to the Special Issue Recent Advances in Biosensors for Healthcare Applications)
Uncontrolled Keywords:electrochemical sensor; ethanol detector; 2D materials; multivariate optimization; indium oxide
Group:Faculty of Science & Technology
ID Code:36542
Deposited By: Symplectic RT2
Deposited On:24 Jan 2022 15:16
Last Modified:14 Mar 2022 14:32

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