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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Tyszczuk-Rotko, K., Rotko, M. Voltammetric determination of platinum at a lead film electrode in environmental water samples. Environ Monit Assess 186, 7801–7806 (2014). https://doi.org/10.1007/s10661-014-3968-2
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DOI: https://doi.org/10.1007/s10661-014-3968-2