Anodic Stripping Voltammetry on a Carbon-based Ion-Selective Electrode.

ABSTRACT: In this study, we demonstrated the unique capability of carbon-based ion-selective electrode (ISE) to perform highly sensitive square wave anodic stripping voltammetry, while maintaining all the properties of an ISE, in terms of sensitivity, detection limit, response time and selectivity. Square wave anodic stripping voltammetry involves deposition and dissolution steps of metal ions, which means adsorption and desorption of metal ions on the conductive ion-selective membrane without losing its ion-sensing property. To demonstrate this capability, we chose a Ca²⁺ ion-selective microelectrode (μISE) as a potentiometric method and Cu²⁺-stripping voltammetry as an amperometric method. The carbon-based ISE surface is capable of quantifying nanomolar to micromolar Cu²

SUBMITTER: Park S 

PROVIDER: S-EPMC8415442 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature