Utilização da múltipla voltametria de onda quadrada na determinação eletroanalítica de compostos orgânicos e inorgânicos

Química Nova

Djenaine De Souza²  Andressa Galli²  Marcelo L. Calegaro²  Sergio A. S. Machado²  Roberto C. Pires¹ 

[1] ,Universidade de São Paulo IInstituto de Química de São Carlos São Carlos SP ,Brasil

关键词: multiple square wave voltammetry;    multiple pulses;    analytical sensitivity;   

DOI  :  10.1590/S0100-40422007000200038

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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