title: Non-invasive NMR stratigraphy of a multi-layered artefact: an ancient detached mural painting.
abstract: NMR stratigraphy was used to investigate in situ, non-destructively and non-invasively, the stratigraphy of hydrogen-rich layers of an ancient Nubian detached mural painting. Because of the detachment procedure, a complex multi-layered artefact was obtained, where, besides layers of the original mural painting, also the materials used during the procedure all became constitutive parts of the artefact. NMR measurements in situ enabled monitoring of the state of conservation of the artefact and planning of minimum representative sampling to validate results obtained in situ by solid-state NMR analysis of the samples. This analysis enabled chemical characterization of all organic materials. Use of reference compounds and prepared specimens assisted data interpretation.
authors: Laboratorio di Risonanza Magnetica Annalaura Segre, Istituto di Metodologie Chimiche (IMC), CNR, Area della Ricerca di Roma 1, Via Salaria km 29,300, 00015, Monterotondo, Roma, Italy.
authors: Valeria
authors: V
authors: Di Tullio
authors: Donatella
authors: D
authors: Capitani
authors: Federica
authors: F
authors: Presciutti
authors: Gennaro
authors: G
authors: Gentile
authors: Brunetto Giovanni
authors: BG
authors: Brunetti
authors: Noemi
authors: N
authors: Proietti