Abstract
A commercially available screen-printed carbon electrode coated with an ex situ deposited bismuth film (BiSPCE) has been applied to the determination of Pb(II) and Zn(II) ions in tap water (Barcelona water distribution network) by means of stripping voltammetry (SV) and stripping chronopotentiometry (SCP). A good reproducibility of the measurements and a satisfactory agreement between SV and SCP data were observed for both heavy metal ions. Although, in principle, the procedure could be also suited to the determination of Cd(II), this species was not detected. The results were also consistent with the routine ICP-OES measurements of the water distribution company, thus confirming the potential usefulness of such BiSPCE disposable devices for the analysis of heavy metals in natural waters.
DPASV measurements of Pb(II)-Cd(II)-Zn(II) system in 0.01 mol L-1 KNO3 on bismuth film coated screen-printed carbon electrode (BiSPCE
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Acknowledgments
The authors acknowledge support of the Spanish Ministry of Science and Innovation (Project CTQ2006-14385-C02-01/BQU). The authors also acknowledge Dr. Ricard Devesa from Agbar Water for supplying us the ICP-OES data.
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Serrano, N., Díaz-Cruz, J.M., Ariño, C. et al. Stripping analysis of heavy metals in tap water using the bismuth film electrode. Anal Bioanal Chem 396, 1365–1369 (2010). https://doi.org/10.1007/s00216-009-3294-7
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DOI: https://doi.org/10.1007/s00216-009-3294-7