Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia

Two samples of ochre painting residues (crayons) obtained from the archaeological site Cave Loncomán (Río Negro, Argentina) were analysed by ATR-IR and FT-Raman spectroscopy revealing the presence of haematite as the red pigment. Further analysis by FTIR of the chloroform/methanol extracts from both...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Maier, M.S., de Faria, D.L.A., Boschín, M.T., Parera, S.D., del Castillo Bernal, M.F.
Formato:	JOUR
Materias:	Archaeological pastes FT-Raman Haematite Infrared spectroscopy Lipids Carboxylic acids Fourier transform infrared spectroscopy Gas chromatography Hematite Hydrolysis Mass spectrometry Raman spectroscopy Vibrational spectroscopy Organic binders Organic extracts Triacylglycerols Painting
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_09242031_v44_n1_p182_Maier
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_09242031_v44_n1_p182_Maier
record_format	dspace
spelling	todo:paper_09242031_v44_n1_p182_Maier2023-10-03T15:45:57Z Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia Maier, M.S. de Faria, D.L.A. Boschín, M.T. Parera, S.D. del Castillo Bernal, M.F. Archaeological pastes FT-Raman Haematite Infrared spectroscopy Lipids Carboxylic acids Fourier transform infrared spectroscopy Gas chromatography Hematite Hydrolysis Lipids Mass spectrometry Raman spectroscopy Vibrational spectroscopy Archaeological pastes Organic binders Organic extracts Triacylglycerols Painting Two samples of ochre painting residues (crayons) obtained from the archaeological site Cave Loncomán (Río Negro, Argentina) were analysed by ATR-IR and FT-Raman spectroscopy revealing the presence of haematite as the red pigment. Further analysis by FTIR of the chloroform/methanol extracts from both archaeological pastes showed the presence of carboxylic acids, indicative of hydrolysis of triacylglycerols in the pastes. Analysis by GC and GC/MS indicated that the main organic constituents of both pastes were saturated (C16:0 and C18:0) and unsaturated (C16:1 and C18:1) fatty acids. Our results show that the combined FTIR and Raman spectroscopic evaluation of archaeological pastes and their organic extracts provides a very useful and simple methodology to characterize the inorganic pigment and the presence of organic binders in an archaeological sample. © 2006 Elsevier B.V. All rights reserved. Fil:Maier, M.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09242031_v44_n1_p182_Maier
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Archaeological pastes FT-Raman Haematite Infrared spectroscopy Lipids Carboxylic acids Fourier transform infrared spectroscopy Gas chromatography Hematite Hydrolysis Lipids Mass spectrometry Raman spectroscopy Vibrational spectroscopy Archaeological pastes Organic binders Organic extracts Triacylglycerols Painting
spellingShingle	Archaeological pastes FT-Raman Haematite Infrared spectroscopy Lipids Carboxylic acids Fourier transform infrared spectroscopy Gas chromatography Hematite Hydrolysis Lipids Mass spectrometry Raman spectroscopy Vibrational spectroscopy Archaeological pastes Organic binders Organic extracts Triacylglycerols Painting Maier, M.S. de Faria, D.L.A. Boschín, M.T. Parera, S.D. del Castillo Bernal, M.F. Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia
topic_facet	Archaeological pastes FT-Raman Haematite Infrared spectroscopy Lipids Carboxylic acids Fourier transform infrared spectroscopy Gas chromatography Hematite Hydrolysis Lipids Mass spectrometry Raman spectroscopy Vibrational spectroscopy Archaeological pastes Organic binders Organic extracts Triacylglycerols Painting
description	Two samples of ochre painting residues (crayons) obtained from the archaeological site Cave Loncomán (Río Negro, Argentina) were analysed by ATR-IR and FT-Raman spectroscopy revealing the presence of haematite as the red pigment. Further analysis by FTIR of the chloroform/methanol extracts from both archaeological pastes showed the presence of carboxylic acids, indicative of hydrolysis of triacylglycerols in the pastes. Analysis by GC and GC/MS indicated that the main organic constituents of both pastes were saturated (C16:0 and C18:0) and unsaturated (C16:1 and C18:1) fatty acids. Our results show that the combined FTIR and Raman spectroscopic evaluation of archaeological pastes and their organic extracts provides a very useful and simple methodology to characterize the inorganic pigment and the presence of organic binders in an archaeological sample. © 2006 Elsevier B.V. All rights reserved.
format	JOUR
author	Maier, M.S. de Faria, D.L.A. Boschín, M.T. Parera, S.D. del Castillo Bernal, M.F.
author_facet	Maier, M.S. de Faria, D.L.A. Boschín, M.T. Parera, S.D. del Castillo Bernal, M.F.
author_sort	Maier, M.S.
title	Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia
title_short	Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia
title_full	Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia
title_fullStr	Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia
title_full_unstemmed	Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia
title_sort	combined use of vibrational spectroscopy and gc-ms methods in the characterization of archaeological pastes from patagonia
url	http://hdl.handle.net/20.500.12110/paper_09242031_v44_n1_p182_Maier
work_keys_str_mv	AT maierms combineduseofvibrationalspectroscopyandgcmsmethodsinthecharacterizationofarchaeologicalpastesfrompatagonia AT defariadla combineduseofvibrationalspectroscopyandgcmsmethodsinthecharacterizationofarchaeologicalpastesfrompatagonia AT boschinmt combineduseofvibrationalspectroscopyandgcmsmethodsinthecharacterizationofarchaeologicalpastesfrompatagonia AT parerasd combineduseofvibrationalspectroscopyandgcmsmethodsinthecharacterizationofarchaeologicalpastesfrompatagonia AT delcastillobernalmf combineduseofvibrationalspectroscopyandgcmsmethodsinthecharacterizationofarchaeologicalpastesfrompatagonia
_version_	1782025170236473344

Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia

Ejemplares similares