6533b7dcfe1ef96bd1272a76
RESEARCH PRODUCT
"One-touch" voltammetry of microparticles for the identification of corrosion products in archaeological lead
María Teresa Doménech-carbóMªamparo Peiró-rondaAntonio Doménech-carbósubject
Materials scienceVoltammetry of microparticlesMetallurgyAqueous electrolyteArchaeologyAnalytical ChemistryCorrosionArchaeological leadAnglesitePINTURAElectrochemistryLithargeNon-invasive analysisGraphiteCorrosion productsVoltammetryGraphite electrodedescription
Voltammetry of microparticles is applied to the identification of lead corrosion products by means of an essentially non-invasive 'one-touch' technique based on the use of graphite pencil. This methodology permits the mechanical attachment of few nanograms of sample from the surface of lead archaeological artefacts to a paraffin-impregnated graphite electrode, which, upon immersion in aqueous electrolytes, provides distinctive voltammetric responses for litharge and cotunnite- anglesite-, cerusite-based corrosion products. The reported method is applied to the identification of corrosion products in archaeological lead pieces from different Iberian sites in Valencia (Spain). © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-05-17 |