Simultaneous identification of lead pigments and binding media in paint samples using voltammetry of microparticles
Voltammetry of microparticles is applied to the simultaneous determination of lead pigments and binding media in paint samples. The mechanical attachment of a few nanograms of sample to a paraffin-impregnated graphite electrode produced well-defined square wave voltammetric responses for model paint...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2007 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/32254 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/32254 |
| Access Level: | acceso abierto |
| Palabra clave: | Lead pigments Binding media Voltammetry of microparticles Conservation Paintings Pigmentos de plomo Medio aglutinante Voltametría de micropartículas Conservación Pinturas CONSERVACION Y RESTAURACION DE BIENES CULTURALES (UPV) |
| Sumario: | Voltammetry of microparticles is applied to the simultaneous determination of lead pigments and binding media in paint samples. The mechanical attachment of a few nanograms of sample to a paraffin-impregnated graphite electrode produced well-defined square wave voltammetric responses for model paint specimens containing lead white, minium and Naples yellow associated with linseed, sunflower and poppy oils and casein, egg, and bovine gelatin. The use of a multiparametric fitting of the electrochemical data allows for the simultaneous identification of the lead pigment and binder in synthetic paint specimens. |
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