Collect. Czech. Chem. Commun. 2001, 66, 423-433

Theoretical Analysis of Pulse and Differential Pulse Polarography of Reversible Redox Reaction Complicated by Reactant Adsorption

Milivoj Lovrić*, Marina Zelić and Šebojka Komorsky-Lovrić

Center for Marine Research, "Ruđer Bošković" Institute, POB 180, 10002 Zagreb, Croatia


Pulse and differential pulse polarograms of redox reactions complicated by reactant adsorption with and without lateral attractions in the monolayer are analysed theoretically by using a stationary spherical diffusion model. The continuous shift of the post-peak potential to lower values and the decrease in its half-peak width with increasing bulk concentration of reactant indicate attractions between adsorbed ions or molecules.

Keywords: Pulse polarography; Differential pulse polarography; Stationary spherical diffusion model; Adsorption; Static mercury drop electrode; PbBr2.

References: 10 live references.