Limits and perspectives of archaeometric analysis of archaeological metals: A focus on the electrochemistry for studying ancient bronze coins

This review aims to collect the recent literature about the archaeometric analysis on ancient metals focusing on the electrochemical techniques: the electrochemical impedance spectroscopy (EIS) and the voltammetry of immobilized microparticles (VIMP) method. A special look will be given to the analysis of bronze coins, very common finds in the archaeological contests. It will be discussed the importance of the characterization analysis and the archaeometric research to solve archaeological questions. In this regard, the studies about the potentialities of EIS and VIMP for dating these objects will be examined, highlighting the state of the art in the application of electrochemical techniques in the archaeometric field.