Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/6520
Title: ToF-SIMS characterization of proteinaceous binders in the wall painting “Madonna and Child enthroned with Saints” by Ambrogio Lorenzetti in the St. Augustine Church (Siena, Italy)
Authors: BENETTI, FRANCESCA
PERRA, GUIDO
DAMIANI, DAMIANO
Atrei, Andrea Massimo 
MARCHETTINI, NADIA
Keywords: ToF-SIMS; HPLC; Proteins; Ageing; Cultural heritage; Multivariate analysis
Issue Date: 2015
Project: None 
Journal: INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
Abstract: 
In this paper, we report the results of investigations, by means of ToF-SIMS and HPLC, of samples taken from the wall painting "Madonna and Child Enthroned with Saints" (1335-1338) by Ambrogio Lorenzetti. The aim of this study was to test the capability of ToF-SIMS to identify the nature of the protein-based binders used in the wall painting. The peaks characteristic of egg components were observed in the ToF-SIMS mass spectra of the a secco-applied layers. On the contrary, the ToF-SIMS spectra of the a fresco-applied layers did not show the markers of egg. The PCA results of the protein peaks are consistent with the presence of a rabbit glue-egg mixture. The PCA of protein peaks in the ToF-SIMS spectra was carried out for artificially aged and non-aged reference samples of rabbit glue, casein, egg and their mixtures in order to estimate the effect of ageing on protein-based binding media. Both ToF-SIMS and HPLC data showed that animal glue was present in the a secco- and a fresco-applied layers. On the basis of these results, we can conclude that animal glue was not used as binding medium but was probably applied to the wall painting in prior restorations.
Description: 
76784
URI: http://hdl.handle.net/20.500.12779/6520
ISSN: 1387-3806
DOI: 10.1016/j.ijms.2015.09.018
Appears in Collections:Publications

Show full item record

Page view(s)

1
Last Week
0
Last month
0
checked on May 16, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.