Use of a Voltammetric Electronic Tongue for Detection and Classification of Nerve Agent Mimics |
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| Authors: | Inmaculada Campos Luis Gil Ramón Martínez‐Mañez Juan Soto José‐Luis Vivancos |
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| Institution: | 1. Instituto de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Centro mixto Universidad Politécnica de Valencia – Universidad de Valencia, Valencia, Spain, tel.: +34?96?387?7007;2. fax: +34?96?387?9869;3. Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain;4. Departamento de Ingeniería Electrónica, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain;5. CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER‐BBN);6. Departamento de Proyectos de Ingeniería, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022?Valencia, Spain |
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| Abstract: | An electronic tongue (ET) based on pulse voltammetry has been used to predict the presence of nerve agent mimics in aqueous environments. The electronic tongue array consists of eight working electrodes (Au, Pt, Ir, Rh, Cu, Co, Ni and Ag) encapsulated on a stainless steel cylinder. Studies including principal component analysis (PCA), artificial neural networks (fuzzy ARTMAP) and partial least square techniques (PLS) have been applied for data management and prediction models. For instance the electronic tongue is able to discriminate the presence of the nerve agent simulants diethyl chlorophosphate (DCP) and diethyl cyanophosphate (DCNP) from the presence of other organophosphorous derivatives in water. Finally, PLS data analysis using a system of 3 compounds and 3 concentration levels shows a good accuracy in concentration prediction for DCP and DCNP in aqueous environments. |
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| Keywords: | Electronic tongue Voltammetry Principal component analysis Nerve agent mimics Fuzzy ARTMAP |
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