8.000.5051EN - Metrohm

11VoltammetrySuperior detection sensitivity, competitive priceVoltammetry is an electrochemical analytical method thatprovides information on the type and amount of substancescontained in a dissolved sample on the basis ofa current-voltage relationship. The particular benefit ofvol tammetry lies in its high accuracy and sensitivity, thepos sibility of performing speciation analysis, and its fa vorableprice-performance ratio.Heavy metal ions that are present as contaminants infood can be determined with high sensitivity by voltammetry.To this end, food samples must be digested priorto analysis.797 VA ComputraceThe 797 VA Computrace is a state-of-the-art, computerassistedvoltammetric analysis system. The potentiostat/galvanostat built into the instrument guarantees highestprecision with reduced noise. The included PC softwarecontrols the determination and calculates and archivesthe results.Voltammetric determination of Cd, Pb and Cu in wineApplicationsCd, Pb, Cu, Fe(II), Fe(III) and HgMost heavy metals are toxic and very low maximum limitsapply regarding their presence in wine. Thus the exactdetermination of these elements by high-performancemethods is essential. With the 797 VA Computrace, it ispossible to perform the determination of heavy metals inwine and other foods after UV digestion.