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Updated: Apr 26, 2026

Electrochemical Roughening of Thin-Film Platinum Macro and Microelectrodes
Published on: June 30, 2019
Voltammetric determination of platinum at a lead film electrode in environmental water samples
Katarzyna Tyszczuk-Rotko1, Marek Rotko
1Faculty of Chemistry, Department of Analytical Chemistry and Instrumental Analysis, Maria Curie-Sklodowska University, 20-031, Lublin, Poland, ktyszczuk@poczta.umcs.lublin.pl.
Abstract:
The paper presents the first report on the application of a lead film electrode for the determination of ultratrace concentrations of platinum. The procedure is based on preconcentration of the Pt(IV)-formaldehyde complexes at an in situ plated lead film electrode held at -0.9 V (vs. Ag/AgCl), followed by a negatively sweeping differential pulse voltammetric scan. The composition of the supporting electrolyte, the influence of accumulation potential and time on the sensitivity of platinum responses are discussed. The detection limit of Pt(IV) with the accumulation time of 60 was equal to 9.2 × 10(-12) mol L(-1). The application of this method was tested by recovery of Pt(IV) from spiked environmental water samples.
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