Electrochemical oxidation and electroanalysis of paracetamol on a boron-doped diamond anode material in aqueous electrolytes

Electrochemical oxidation of paracetamol on boron-doped diamond (BDD) anode has been studied by cyclic voltammetry and preparative electrolysis. Quantification during electrolysis mainly realized differential pulse technique in the Britton-Robinson buffer solutions used as supporting electrolyte. Various parameters such current intensity, nature electrolyte, temperature, initial concentration have investigated. The electrochemical characterization outer sphere Fe(III)/Fe(II) redox couple also performed, showing metallic character BDD electrode. obtained linear dependency peak intensity indicates that electrode can be an sensor for detection quantification paracetamol. investi­gation degradation showed that: (i) rate increases with increase applied; (ii) concentrations 10, 6 1 mM paracetamol, its reaches 60, 78 99 % respectively, after h 0.3 M H2SO4 (pH 0.6) at applied density 70 mA cm-2; (iii) temperatures electrolyte solution 28, 55 75 °C, reached 85, 92 97 2 cm2. From investigation effect pH value solution, it appears is more favorable acidic 3 than higher values.