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Sensors 2017, 17(8), 1769; doi:10.3390/s17081769

A Simple and Inexpensive Electrochemical Assay for the Identification of Nitrogen Containing Explosives in the Field

Center for Biomolecular Science and Engineering, Naval Research Laboratory, Washington, DC 20375, USA
Author to whom correspondence should be addressed.
Received: 11 July 2017 / Revised: 27 July 2017 / Accepted: 31 July 2017 / Published: 2 August 2017
(This article belongs to the Section Chemical Sensors)
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We report a simple and inexpensive electrochemical assay using a custom built hand-held potentiostat for the identification of explosives. The assay is based on a wipe test and is specifically designed for use in the field. The prototype instrument designed to run the assay is capable of performing time-resolved electrochemical measurements including cyclic square wave voltammetry using an embedded microcontroller with parts costing roughly $250 USD. We generated an example library of cyclic square wave voltammograms of 12 compounds including 10 nitroaromatics, a nitramine (RDX), and a nitrate ester (nitroglycine), and designed a simple discrimination algorithm based on this library data for identification. View Full-Text
Keywords: electroanalytical chemistry; explosives detection; field assay electroanalytical chemistry; explosives detection; field assay

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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. (CC BY 4.0).

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Erickson, J.S.; Shriver-Lake, L.C.; Zabetakis, D.; Stenger, D.A.; Trammell, S.A. A Simple and Inexpensive Electrochemical Assay for the Identification of Nitrogen Containing Explosives in the Field. Sensors 2017, 17, 1769.

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