Use of the multiple square wave voltammetry in the electroanalytical determination of organic and inorganic compounds

Author(s)

Djenaine De Souza ^[1] ; Andressa Galli ^[2] ; Marcelo L. Calegaro ^[3] ; Sergio A. S. Machado ^[4] ; Roberto C. Pires ^[5]

Affiliation

^[1] Universidade de São Paulo. IInstituto de Química de São Carlos - Brasil

^[2] Universidade de São Paulo. IInstituto de Química de São Carlos - Brasil

^[3] Universidade de São Paulo. IInstituto de Química de São Carlos - Brasil

^[4] Universidade de São Paulo. IInstituto de Química de São Carlos - Brasil

^[5] Universidade de São Paulo. Escola de Engenharia de São Carlos - Brasil

• Document type: Journal article
• Source: Química Nova; v. 30, n. 2, p. 458-463, 2007-04-00.

Abstract

This paper reports the development of multiple square wave voltammetry and the possibilities of its use for electroanalytical determinations of organic and inorganic compounds with the improvement of the signal-to-noise ratios and detection limits 2-3 orders of magnitude lower than those obtained with conventional square wave voltammetry. The theoretical aspects and analytical applications were demonstrated as an increased analytical response (current) and application of different pulse modes for different redox processes. Preliminary results obtained for several redox systems using different electrode surfaces are shown, demonstrating also that MSWV represents an excellent alternative for the determination of ultra-traces of organic and inorganic compounds. (AU)

• FAPESP's process: 05/00294-8 - Development and characterization of a bienzymatic biosensor to determine sugars in dietetic food
• Grantee: Andressa Galli
• Support Opportunities: Scholarships in Brazil - Doctorate