Voltammetric determination of mercury(II)

• Up-to-date assessment of state-of-the-art voltammetric determination of Hg(II).
• Quantitative comparison of approaches according to the type of working electrode.
• Full cover of modern voltammetric determination of Hg(II) with nanomaterials.
• Deficiencies identified in present works on voltammetric determination of Hg(II).
• Outlook over future trends in voltammetric determination of Hg(II).

Monitoring mercury provides a real challenge in analytical and environmental science, yet solutions are urgently needed due to the adverse effects of mercury on human health and the environment. Electrochemical techniques, more specifically voltammetric techniques, for determination of mercury(II) [Hg(II)] have inherent advantages. We review the state of the art in voltammetric determination of Hg(II) through quantitatively comparing different approaches classified according to the type of working electrode used. As much modern electroanalysis uses nanomaterials for the design of optimal electrode surfaces, this aspect is covered fully.