Polarography is still the best known classical measuring method in electroanalytical chemi-stry. However, in recent years its position has been challenged by cyclic voltammetry (Cv). Simple diagnostic criteria and relatively easily acquired measuring techniques have has-tened this development. Cyclic voltammetry has the further attraction of providing informa-tion not only on the thermodynamics of redox processes but also on the kinetics of hetero-geneous electron-transfer reactions and coupled chemical reactions. The characteristic shapes of the voltammetric waves and their unequivocal position on the potential scale vir-tually fingerprint the individual electrochemical properties of redox systems. For this rea-son the method has been labeled "electrochemical spectroscopy".
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