Cyclic voltammetry study of the electrocatalytic reduction of sevoflurane by a cobalt(III) Schiff base complex in the presence of oxygen

The electrocatalytic reduction of sevoflurane has been carried out at a platinum electrode using cyclic voltammetry. It was found that the sevoflurane molecule is non-electroactive in the potential region between 0.5 and −2.3 V vs. Ag/AgCl (satd.) electrode in dimethyl sulphoxide (DMSO) solution. However, the results show that, in a mixture with oxygen, cobalt(III) Schiff base complex (CoLOAC), and sevoflurane, an irreversible peak appears at about −1.77 V vs. Ag/AgCl (satd) electrode. It was observed that the peak height increases linearly with sevoflurane concentration up to 7.5 mM. The detection limit is estimated to be 0.5 mM.