Recent developments in electrochemical detection of cadmium

Heavy metal cadmium (Cd) poses extreme toxicity to the environmental and human health, thus its detection provides a great challenge in the environmental and analytical science, yet the solution is needed urgently owing to the adverse effects. During the past years, the electrochemical techniques have received considerable attentions for Cd2+ determination due to their unique advantages. In this review, a common introduction was provided firstly and followed by the detection principles. Then, a fully comprehensive elucidation of the recent developments in electrochemical detection of Cd2+ was presented. Finally, the critical challenge and perspectives of Cd2+ detection were outlined.