✦ LIBER ✦

Voltammetric behaviour of marine hydrophobic copper complexes: effect of adsorption processes at a mercury electrode

✍ Scribed by Gioacchino Scarano; Emilia Bramanti

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 804 KB
Volume: 277
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(93)85098-5

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✦ Synopsis

The voltammetric behaviour of copper in the presence of marine hydrophobic organic matter and soil fulvic acid was examined by differential-pulse anodic stripping voltammetry (DPASV) in sodium perchlorate. These organic substances strongly adsorb on a mercury electrode, thereby affecting the peak current. The extent of this interference is related to the' charge on the electrode during the plating step, but the mechanism of the infhrence on the anodic peak is mainly connected with the stripping step. A cathodic potential step whereby the effects of adsorption can be removed is described. This modified DPASV method was used to evaluate the lability of copper-organic complexes and to elucidate the effects on the anodic current due to the adsorption process.

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✍ Arnold G. Fogg; F. Nil Ertas; Josino C. Moreira; Jiri Barek 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 881 KB

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