Comportamiento electroquímico de un electrodo de oro modificado con una monocapa autoensamblada del ácido 2-N-bencil-1- ciclopenten-di-tiocarboxílico

Abstract

The study of coverage (nmol/cm-2) of N-bencyl-1-cyclopenten-di-thiocarboxylic acid (novel compound) depending on the immersion time of the gold electrode in a solution of the mentioned compound, as well as the characterization of the adsorbed monolayer has been carried out by cyclic voltammetry (CV). The self assembled monolayer (SAM) has been tested for stability in defined potential intervals and blocking properties for electron transfer [Fe(CN)6]3-/[Fe(CN)6]4- and Cu(II). Detection and quantifying of copper by stripping of underpotential deposits and by stripping of bulk deposition formed at the modified gold electrode was carried out by square wave voltammetry (SWV) in copper-free phosphate buffer.

Keywords

• Self-assembled monolayer
• Copper (II)
• Stripping analysis
• Gold electrode
• Voltammetric detection