Determination of Se(IV) by anodic stripping voltammetry using gold electrodes made from recordable CDs

Claudete Fernandes Pereira; Fabiano Barbieri Gonzaga; Antonio Moraes Guaritá-Santos; Jurandir Rodrigues Souzade

doi:10.1016/j.talanta.2005.11.031

Determination of Se(IV) by anodic stripping voltammetry using gold electrodes made from recordable CDs

Talanta. 2006 Jun 15;69(4):877-81. doi: 10.1016/j.talanta.2005.11.031. Epub 2005 Dec 27.

Authors

Claudete Fernandes Pereira¹, Fabiano Barbieri Gonzaga, Antonio Moraes Guaritá-Santos, Jurandir Rodrigues Souzade

Affiliation

¹ Universidade de Brasília, Instituto de Química, Laboratório de Química Analítica e Ambiental, Campus Darcy Ribeiro, P.O. Box 4478, 70919-970 Brasília, DF, Brazil.

PMID: 18970651
DOI: 10.1016/j.talanta.2005.11.031

Abstract

This work presents a simple, reproducible and low cost method, employing differential pulse anodic stripping voltammetry, for determination of selenium(IV). A gold electrode obtained from recordable compact disks (CD-R) was used to evaluate the voltammetric behavior of the metallic ion in 0.1molL(-1) HClO(4). To evaluate the voltammetric behavior of Se(IV), parameters such as deposition potential and deposition time were optimized. A wide linear response range, from 0.5 to 291ngmL(-1), was obtained using a 5.0mm diameter gold electrode. Recovery tests for Se(IV) utilizing standard reference solutions provided values between 94 and 96%.