Electrochemical stripping analysis of methyl-parathion (MPT) using carbon fiber microelectrodes (CFME) modified with combinations of poly-NiTSPc and Nafion® films

A novel carbon fiber microelectrode (CFME) was obtained by tetrasulfonated phtalocyanine (p-NiTSPc) electrodeposition on carbon surface combined with Nafion® coating for the detection of methyl-parathion (MPT). Square-wave voltammetric parameters were optimized (frequency, initial scanning potential, scan increment and pulse height). Our contribution shows the possibility of a rapid detection of MPT on a poly-NiTSPc film with a clear electrocatalytic activity towards MPT redox process. It appeared also that nickel complexes-based associated to Nafion® coating offer an indisputable advantage for developing new electrode materials in the field of electrochemical detection of the MPT and their organic derivatives.