title: Screening and mapping of pigments in paintings using scanning electrochemical microscopy (SECM).
abstract: The use of the scanning electrochemical microscopy (SECM) technique for identifying and mapping of both organic and inorganic pigments in sub-microsamples from pictorial specimens is described. This methodology, inspired by the voltammetry of immobilized particles technique, permits the study of textural properties of paint layers and mapping the distribution of pigment grains upon application of different potentials to the substrate. A combination of the redox competition SECM strategy with voltammetry yields a local identification methodology for different organic and inorganic pigments in paint samples.
authors.affiliation: Departament de Química Analítica. Universitat de València, Dr. Moliner, 50, 46100 Burjassot (València), Spain. antonio.domenech@uv.es.
authors.forename: Antonio
authors.initials: A
authors.lastname: Doménech-Carbó
authors.forename: María Teresa
authors.initials: MT
authors.lastname: Doménech-Carbó
authors.forename: Miguel
authors.initials: M
authors.lastname: Silva
authors.forename: Francisco Manuel
authors.initials: FM
authors.lastname: Valle-Algarra
authors.forename: José Vicente
authors.initials: JV
authors.lastname: Gimeno-Adelantado
authors.forename: Francisco
authors.initials: F
authors.lastname: Bosch-Reig
authors.forename: Rufino
authors.initials: R
authors.lastname: Mateo-Castro