Abstract
One of the most appealing features of ion-selective electrodes (ISE) is their ease of use, an electrical method used to measure common elements such as sodium, potassium, and chlorine in the autoanalyzer and its development for the measurement of heavy elements such as zinc and copper through the manufacture of highly selective and sensitive electrodes. A new metals oxide carbon paste electrode (MCPE) with good ion-capturing to detect the level of heavy elements in serum and solutions was created by synthesizing the of (Zn,Cu)-O nanoparticles using a hydrothermal method. For optimal circumstances, the physical and chemical characteristics of the electrode were investigated. The cyclic voltammetry redox wave was used to record a signal. By cyclic voltammograms, a large signal for oxidation-reduction occurs with a reversible mechanism due to one electron transmission for ionization of zinc and a quasi-reversible peak for the Cu metal. Thermodynamic and kinetic aspects have also been investigated such as ∆E, ∆H, ∆G, ∆S equal to –4.32, –32.19, 33.40, 0.031 respectively. The results demonstrate that the novel electrode can discriminate between peaks produced by redox processes of two elements at a similar time, having two different oxidation peaks and two separate redaction peaks. The electrical conductivity qualities of zinc and copper allowed us to build and extend electrical cells and measure five elements simultaneously using an electrical technique.
