Article Title：A comparison of methods for establishing fatty acid concentration gradients across potsherds: A case study using Late Bronze Age Canaanite amphorae
Abstract：
Canaanite amphorae fragments in fabrics believed to be associated with the bulk transport of vegetable oils from the fourteenth century BC site of Amarna, Egypt, have been examined. A comparison is made between solvent extraction, saponification and the use of TMTFTH (m-trifluoromethylphenyl)trimethylammonium hydroxide, used here for the combined extraction and derivatization of ceramic-absorbed organic residues. Extracts were studied using gas chromatography and gas chromatography-mass spectrometry. The extraction of fatty acids from small ceramic samples has established concentration gradients of absorbed organic matter from the inner to the outer surfaces of the sherds.
Keywords: Egypt; Tell El-Amarna; Late Bronze Age; extraction; gas chromatography; gas chromatography-mass spectrometry; methylation; saponification; amphorae; ceramics
DOI: 10.1111/j.1475-4754.2000.tb00890.x
Source：ARCHAEOMETRY
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