Application of an Optimization Procedure for the Determination of Chromium in Various Water Types by Catalytic-Adsorptive Stripping Voltammetry

✍ Scribed by Olga Domínguez; Silvia Sanllorente; M. Asunción Alonso; M. Julia Arcos

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 179 KB
• Volume: 13
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/1521-4109(200112)13:18<1505::aid-elan1505>3.0.co;2-n

✦ Synopsis

A procedure for the determination of chromium by differential pulse catalytic-adsorptive stripping voltammetry (DPAdSV), using N-(2hydroxyethyl) ethylenediamine-N, N 0 , N 0 -triacetic acid (HEDTA) as complexing agent, has been optimized. The selection of the experimental conditions was made using experimental design methodology. The calibrations were made under these conditions, using a robust regression method which allows for the elimination of anomalous points. The detection limit obtained was 1.84610 À10 mol dm À3 . The procedure was successfully applied to the determination of chromium in different water types.