Abstract
The technique of second-harmonic a.c. polarography is discussed from the viewpoints of
theoretical basis, experimental requirements, and scope of application.
The theoretical relation is given for the
second-harmonic current-component of a straightforward electrochemical reaction
under conditions of a.c, polarography. It is shown how this relation can be
used to determine the kinetic parameters (rate constant and transfer
coefficient) of the electron-transfer step. Results obtained with the zinc(n)/zinc
(mercury) system are in good agreement with those reported in other
investigations by other methods.
The experimental aspects of
second-harmonic studies are examined, and the dependence of the accuracy and
reliability of results on various features of the instrumental arrangement is
brought out.��� Potential applications, particularly in
tensammetric studies and in analytical work, are indicated.
Cited by
25 articles.
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