Electrochemical Detection of Cd, Pb, Cu and Hg with Sensors Based on Carbonaceous Nanomaterials and FeO Nanoparticles.

Two electrochemical sensors were developed in this study, with their preparations using two nanomaterials with remarkable properties, namely, carbon nanofibers (CNF) modified with FeO nanoparticles and multilayer carbon nanotubes (MWCNT) modified with FeO nanoparticles. The modified screen-printed electrodes (SPE) were thus named SPE/FeO-CNF and SPE/FeO-MWCNT and were used for the simultaneous detection of heavy metals (Cd, Pb, Cu and Hg). The sensors have been spectrometrically and electrochemically characterized.