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Stable carbon isotopic characterisation of free and bound lipid constituents of archaeological ceramic vessels released by solvent extraction, alkaline hydrolysis and catalytic hydropyrolysis

Lookup NU author(s): Dr Oliver Craig, Dr Gordon Love, Dr Sven Isaksson, Gillian Taylor


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Free and covalently bound lipid constituents of archaelogical ceramic vessels were analyzed. A sequential degradation scheme involving solvent extraction, alkaline saponification, and catalytic hydropyrolysis was used for recovering these lipids from the two archaelogical ceramic sherds. The stable carbon isotopic values of the major products released by the sequential degradation process were measured using gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS). The co-existence of preserved aliphatic fatty acids and thermally-stable aromatic macromolecular phase within the same ceramic matrix indicated that the preserved lipid components were introduced into the the vessel after the formation of the bulk of the char.

Publication metadata

Author(s): Craig OE, Love GD, Isaksson S, Taylor G, Snape CE

Publication type: Article

Publication status: Published

Journal: Journal of Analytical and Applied Pyrolysis

Year: 2004

Volume: 71

Issue: 2

Pages: 613-634

ISSN (print): 0165-2370

ISSN (electronic): 1873-250X

Publisher: Elsevier BV


DOI: 10.1016/j.jaap.2003.09.001


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