Author:
Pinheiro Jose Paulo,Rocha Luciana S.,Goveia Danielle,Town Raewyn M.
Abstract
Environmental context
Electroanalytical methods have found wide application in trace metal speciation analysis in environmental systems. The need to find functional alternatives to mercury electrodes for in situ speciation studies has encouraged the use of bismuth as a solid-state electrode substrate. We demonstrate the utility of bismuth electrodes for quantitative dynamic speciation analysis.
Abstract
Bismuth film electrodes are employed for dynamic metal speciation analysis of PbII complexes by stripping chronopotentiometry at scanned deposition potential (SSCP). Their performance is found to be comparable to that of mercury-film electrodes. The quantitative SSCP expressions that describe the thermodynamic and kinetic complexation parameters are straightforwardly applicable to this solid electrode.
Subject
Geochemistry and Petrology,Environmental Chemistry,Chemistry (miscellaneous)
Cited by
5 articles.
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