Electrochemical determination of Cd 2+  at a titanium electrode modified with a lead film by square wave anodic stripping voltammetry

Fatiha Smaili; Abdelkader Benchettara

doi:10.1134/S1023193516010109

Electrochemical determination of Cd²⁺ at a titanium electrode modified with a lead film by square wave anodic stripping voltammetry

Authors: Smaili F.¹, Benchettara A.¹
Affiliations:
1. Laboratory of Electrochemistry-Corrosion, Metallurgy and Inorganic Chemistry
Issue: Vol 52, No 1 (2016)
Pages: 27-36
Section: Article
URL: https://journals.rcsi.science/1023-1935/article/view/187682
DOI: https://doi.org/10.1134/S1023193516010109
ID: 187682

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Abstract
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Abstract

The modified titanium electrode with lead film (PbTiE) was used for determination of trace levels of cadmium using square wave anodic stripping voltammetry (SWASV). The measurement of cadmium on the PbTiE has the best reply under the following conditions of PbTiE preparation: 10^–3 mol L^–1 Pb²⁺ in HCl (pH 1.0), deposition potential of–1.40 V vs. Ag/AgCl/KCl_sat and deposition time of 300 s. The PbTiE reveals highly linear behavior in the concentration range 5 × 10^–8 to 10^–6 mol L^–1, with a limit of detection of 2 × 10^–9 mol L^–1. Interference of nine ionic species was evaluated. The measurements were carried out without removing dissolved oxygen from the solution.

Keywords

square wave anodic stripping voltammetry, chronoamperometry, lead film, titanium electrode, cadmium

About the authors

Fatiha Smaili

Laboratory of Electrochemistry-Corrosion, Metallurgy and Inorganic Chemistry

Author for correspondence.
Email: rahmasmaili@yahoo.fr
Algeria, El Alia Bab Ezzouar, Algiers, 16111

Abdelkader Benchettara