Use of a voltammetric electronic tongue for predicting levels of nerve agent mimics

[EN] An electronic tongue (ET) based on pulse voltammetry containing a set of eight metallic electrodes (Au, Pt, Ir, Rh, Cu, Co, Ni and Ag) encapsulated on a stainless steel cylinder has been used to discriminate and predict levels of nerve agent mimics in aqueous environments. Analysis including principal component analysis (PCA) and partial least square techniques (PLS) have been applied for data management and prediction models. A good discrimination from other organophosphorous derivatives was found for the nerve agent simulants diethyl-chlorophosphate (DCP) and diethyl-cyanophosphate (DCNP).
We thank the Ministerio de Ciencia y Tecnologia (project CTQ2006-15456-C04-01), and Universidad Politecnica de Valencia (project PAID-06-07-3243) for support. I.C. thanks the Universidad Politecnica de Valencia for a Doctoral Fellowship.