Applications of Instrumental Analysis and Chemometry to Old Roman Mortars and Stuccos

Title: Applications of Instrumental Analysis and Chemometry to Old Roman Mortars and Stuccos

Volume: 6 Issue: 1

Author(s): T. Gatta, M. Tomassetti, P. Ciancio Rossetto, R. Grossi, G. Visco and L. Campanella

Affiliation:

Keywords: PCA, HCA, Thermogravimetric analysis, XRD, Old Roman mortar and stucco

Abstract: Small quantities of Roman mortars and stuccos from the Theatre of Marcellus and Porticus of Octavia were subjected to different instrumental techniques - thermogravimetric analysis (TG, DTG), Inductively Coupled Plasma Emission Spectroscopy (ICP-AES) and X-ray diffraction (XRD). The instrumental characterisation and chemometries allowed the stucco samples to be easily distinguished from the mortar. In practice, using the three instrumental analytical methods a total of 36 variables were obtained. The variables were then selected using PCA (Principal Component Analysis), reducing this number to 10. Lastly, using HCA (Hierarchical Cluster Analysis) a good separation was obtained between the two groups of samples (mortars and stuccos).

Cite this article as:

Gatta T., Tomassetti M., Rossetto Ciancio P., Grossi R., Visco G. and Campanella L., Applications of Instrumental Analysis and Chemometry to Old Roman Mortars and Stuccos, Current Analytical Chemistry 2010; 6 (1) . https://dx.doi.org/10.2174/157341110790069664