Voltammetric detection of tetracycline in water at boron-doped diamond electrode

In this work a voltammetric based protocol for detection of tetracycline (TC), considered as emergent pollutant in water, was developed. The electrochemical behavior of TC studied by cyclic voltammetry was considered to optimize operating conditions of advanced voltammetric tehniques, e.g., differential-pulsed voltammetry (DPV) and square-wave voltammetry (SWV). The best electroanalytical parameters for TC detection of 2,29 µA/µM sensitivity and limit of detection (LOD) were achieved using SWV under SP of 0.05V, MA of 0.1V and frequency of 10 Hz

Electrochemical nitrification of ammonium in simulated groundwater using boron-doped diamond electrodes

In this work, the electrochemical oxidation of ammonium from simulated groundwater on boron-doped diamond (BDD) electrodes was assessed in order to be integrated within the drinking water treatment technology. All nitrogen species, i.e., nitrate, nitrite and total nitrogen, were monitored to assess the electrochemical nitrification of ammonium until gaseous nitrogen. For the simulated groundwater containing ammonium concentration of about 1 mgL-1 , the application of electrochemical oxidation at lab scale using BDD electrodes at the current density of 50 Am-2 assured an efficient oxidation of ammonium resulting nitrate at the concentration below maximum allowance concentration, as main intermediate of the electrochemical nitrification