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...
| Autor principal: | |
|---|---|
| Publicado: |
2007
|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09242031_v44_n1_p182_Maier http://hdl.handle.net/20.500.12110/paper_09242031_v44_n1_p182_Maier |
| Aporte de: |
| id |
paper:paper_09242031_v44_n1_p182_Maier |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_09242031_v44_n1_p182_Maier2023-06-08T15:51:03Z Combined use of vibrational spectroscopy and GC-MS methods in the characterization of archaeological pastes from Patagonia Maier, Marta Silvia 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. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09242031_v44_n1_p182_Maier 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, Marta Silvia 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. |
| author |
Maier, Marta Silvia |
| author_facet |
Maier, Marta Silvia |
| author_sort |
Maier, Marta Silvia |
| 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 |
| publishDate |
2007 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09242031_v44_n1_p182_Maier http://hdl.handle.net/20.500.12110/paper_09242031_v44_n1_p182_Maier |
| work_keys_str_mv |
AT maiermartasilvia combineduseofvibrationalspectroscopyandgcmsmethodsinthecharacterizationofarchaeologicalpastesfrompatagonia |
| _version_ |
1768545470847647744 |