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Chemosensors 2013, 1(3), 68-77; doi:10.3390/chemosensors1030068
Article

Electroanalytical Sensing of Flunitrazepam Based on Screen Printed Graphene Electrodes

1
 and 2,*
1 Departamento de Fisiología, Genética y Microbiología Universidad de Alicante Carretera San Vicente del Raspeig s/n San Vicente del Raspeig 03690, Alicante, Spain 2 School of Engineering, Clarke Building, Robert Gordon University, Aberdeen AB10 1FR, UK
* Author to whom correspondence should be addressed.
Received: 1 November 2013 / Revised: 14 November 2013 / Accepted: 25 November 2013 / Published: 6 December 2013
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Abstract

We present a new electrochemical sensor for Flunitrazepam using disposable and economic Screen Printed Graphene Electrodes. It was found that the electrochemical response of this sensor was improved compared to Screen Printed Graphite Electrodes and displayed an excellent analytical performance for the detection of Flunitrazepam. Those characteristics could be attributed to the high Flunitrazepam loading capacity on the electrode surface and the outstanding electric conductivity of graphene. The methodology is shown to be useful for quantifying low levels of Flunitrazepam in a buffer solution. The protocol is also shown to be applicable for the sensing of Flunitrazepam in an alcoholic beverage e.g., Gordon’s Gin & Tonic.
Keywords: Flunitrazepam; Rohynol; Screen Printed Graphene Electrodes Flunitrazepam; Rohynol; Screen Printed Graphene Electrodes
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Garcia-Gutierrez, E.; Lledo-Fernandez, C. Electroanalytical Sensing of Flunitrazepam Based on Screen Printed Graphene Electrodes. Chemosensors 2013, 1, 68-77.

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