Search results for " chemical analyses"
showing 3 items of 3 documents
The production of western Greek amphorae in Agrigento (Southern Sicily): An archaeometric and archaeological characterisation of the late 6th-4th cen…
2022
This paper aims at an interdisciplinary, archaeological and archaeometric characterisation of the western Greek amphorae series produced in late Archaic and Classical-period Agrigento (southern Sicily). The research is based on a macroscopic examination, according to the standardised methods of Fabrics of the Central Mediterranean (FACEM), combined with petrographic analyses of 21 amphorae samples of presumed local fabric found in Agrigento itself. These were found in the artisanal area outside Porta V, in the excavations South of the temple of Zeus, and in several Sicilian consumption sites. Furthermore, a selection of 12 coarse ware samples and three tiles, all of supposed local manufactu…
LE METODICHE ANALITICHE
2022
Il processo analitico è frutto di una serie di tappe fondamentali (Fig. 13.1) che devono permettere di raggiungere lo scopo prefissato: ottenere un’informazione puntuale sul campione sottoposto ad analisi. Le scelte legate alla procedura di campionamento, di pretrattamento del campione e del metodo di analisi sono fortemente influenzate dal tipo di matrice, dal tipo di analita o del parametro da determinare e dal grado di incertezza tollerabile sul risultato finale affinché sia conforme alle esigenze normative, disciplinari o di indagine scientifica. Il campione, inteso come quantità di materia che si sottopone ad analisi, deve essere un’aliquota rappresentativa e omogenea della biomassa ne…
Natural and anthropogenic sources of total suspended particulate and their contribution to the formation of black crusts on building stone materials …
2012
Blackening and disaggregation of exposed surfaces of stone monuments are well-known effects of stone decay taking place in polluted urban environments all over the world. This paper aims to assess the contribution of natural and anthropogenic sources of total suspended particulate (TSP) causing permanent damage (black crusts) to the stone monuments of Catania (Sicily), one of the most popular ‘‘cities of art’’ of southern Italy. Atmospheric pollution of Catania, a typical Mediterranean coastal town, is mainly contributed by vehicle exhaust emissions rather than industrial ones. Episodically, the city also suffers gaseous and ash emissions (plumes) from the nearby Mount Etna volcano. Thus, t…