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Determination of cobalt in vegetable animal foodstuffs by differential pulse adsorptive voltammetry using
S Giroussi1, A Voulgaropoulos, A K Ayiannidis
1Department of Chemistry, Aristotle University of Thessaloniki, Greece.
The Science of the Total Environment
|December 22, 1995
Abstract:
A selective and sensitive voltammetric method for the determination of cobalt in vegetable animal foodstuffs is developed. The method is based on the use of alpha-benzil dioxime (alpha-BD) as a chelating agent for differential pulse adsorptive stripping voltammetry (DPASV) and is free from zinc interferences. The influence of pH, time and alpha-BD concentration on the peak resolution and height are discussed. The method was successfully applied in some typical vegetable animal foodstuffs with R.S.D. < 6%.