Journal
SENSORS
Volume 17, Issue 8, Pages -Publisher
MDPI AG
DOI: 10.3390/s17081769
Keywords
electroanalytical chemistry; explosives detection; field assay
Funding
- US Naval Research Laboratory
- Office of Naval Research
- NRL 6.2 Program
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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.
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