Square wave voltammetry. Part I: theoretical aspects

Química Nova

Avaca, Luis A.¹  Universidade de São Paulo, São Carlos, 13560-970¹  Machado, Sergio A. S.¹  Souza, Djenaine de¹ 

关键词: square wave voltammetry;    electroanalysis;    pulse electroanalytical techniques.;   

DOI  :  10.1590/S0100-40422003000100015

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The theoretical aspects of square wave voltammetry were discussed. Reversible, irreversible and quase-reversible electrode reactions were analyzed and the correlations between parameters like frequency, period, square wave potential and amplitude were showed. In this way, diagnostic relationships allow to characterize the electrode process. The analytical applications were discussed in base of the increment in the analytical response (current) due to the characteristics of the developed equations and the unique mode of collecting the electrode response, i.e., the direct and reverse signals. Finally, recent advances in the basic theory, as the applications to the hydrodynamic electrode and the ultramicroelectrode were also analyzed, and the multiple pulses square wave voltammetry was also introduced.

【 授权许可】

Unknown