Anodic and cathodic stripping voltammetry in the simultaneous determination of toxic metals in environmental samples

✍ Scribed by Clinio Locatelli

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 386 KB
• Volume: 9
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/elan.1140091309

✦ Synopsis

Abstract

Differential pulse anodic and cathodic stripping voltammetry have been employed for the simultaneous determination of As^III^, Se^IV^ Cu^II^, Pb^II^ and Cd^II^ in environmental matrices. The voltammetric measurements were carried out using a conventional three‐electrode cell and the ammonia‐ammonium chloride buffer (pH 9.2) as supporting electrolyte. The analytical procedure was verified by the analysis of the standard reference materials: Mussel Tissue BCR‐CRM 278 and Ulva Lactuca BCR‐CRM 279. The precision and the accuracy, expressed as relative standard deviation (s~r~) and relative error (e), respectively, were of the order of 3 to 5%, while the detection limit for each element, under the experimental conditions employed, was around 10^−9^ M.