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Etudes chromatographique de matériaux organiques contenus dans des amphores romaines

Abstract : This work relates the characterization of materials inside Roman amphorae. It aimed to determine at once thewaterproofing material on the internal walls, but also to identify their content.In this way, different analytical tools were used as infrared spectroscopy (FT-IR) and gas chromatography (GC/MS).Several types of extraction were tested to optimize the results concerning for example the presence of wine (tartric andsyringic acids) or olive oil (oleic, palmitic, stearic acids,…).This preliminary work has been developed with reference Roman amphorae, i.e. whose content was known.In a second time, the obtained results were applied to case studies: amphorae « Dressel 1 type » dating from the endof the IInd century or the beginning of Ist century BC, with the stamp « Sestius ». They come from Cosa in Étrurie, thecurrent Tuscany.The first studied samples correspond to amphorae Dressel 1A of the wreck of Grand Congloué 2. The study with FT-IRindicated different bands concerning organic matter, as the chemical link O-H from carboxylic acid, C-H of themethylene group and C-O of the methyl ester. The study carried out by GC-MS showed diterpenoids, such asdehydroabietic acid and reten, which are diterpenic markers of Pinaceae family. Methyl ester by products were alsocharacterized. It reveals a pitch pyrogenically prepared from resinous wood (Pinus sp.). The extraction of the contentswas optimized and GS-MS technique was successfully applied. We observed the presence of tartric and syringic acids(main markers of wine) in the pitched internal walls surface, but also in the potsherd matter.Other samples come from amphorae Dressel 1C found in the archaeological site of the gaps of the « Verbe Incarné »in Lyon. To verify their contents with wine, the GS-MS technique was used. The obtained results seem to confirm thepresence of wine. Finally the last group concerns amphora shards coming from the Oppidum of Châteaumeillant.Among the studied samples, one of them was particularly interesting, revealing the presence of wine and sandaracresin (Tetraclinis articulata).
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Submitted on : Wednesday, November 28, 2018 - 12:53:09 PM
Last modification on : Tuesday, January 14, 2020 - 10:38:13 AM


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  • HAL Id : tel-01937917, version 1


Hitomi Fujii. Etudes chromatographique de matériaux organiques contenus dans des amphores romaines. Chimie analytique. Université d'Avignon, 2018. Français. ⟨NNT : 2018AVIG0270⟩. ⟨tel-01937917⟩



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