Multianalyte voltammetric determination of traffic-linked metals in marine organisms employed as pollution bio-monitors

Autor: Alessandro Zappi, Clinio Locatelli, Sonia Casolari, Dora Melucci, Francesco De Laurentiis
Přispěvatelé: Locatelli C., Melucci D., De Laurentiis F., Zappi A., Casolari S.
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Environmental Analytical Chemistry. 102:1563-1582
ISSN: 1029-0397
0306-7319
DOI: 10.1080/03067319.2020.1739665
Popis: A new procedure is proposed for the voltammetric determination of ultra-trace cadmium(II), copper(II), lead(II), platinum(II), palladium(II), rhodium(III) and zinc(II) by a single run of square wave adsorptive catalytic stripping voltammetry. The voltammetric cell was based on a typical three-electrodes set-up: working electrode (stationary hanging mercury drop), reference electrode (Ag|AgCl|KClsat) and auxiliary electrode (platinum). The supporting electrolyte contained the formazone complex together with dimethylglyoxime and the disodium salt of ethylenediaminetetraacetic acid. Validation of the analytical procedure was obtained by the analysis of standard reference materials (Mussel Tissue BCR-CRM 278, Oyster Tissue NIST-SRM 1566a). Comparison with spectroscopic measurements was performed. Good accuracy was achieved. The analytical procedure was finally applied to mussels and clams sampled on the mouth of Po river, employed as bio-monitors.
Databáze: OpenAIRE