New product
: 14.5 Centimeters
: 12 Centimeters
pottery
: Iberian
: Early 4th BC
: Oppidum de Puente Tablas
: Puente Tablas, Jaén, Spain
: WGS84
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND) Arquiberlab http://creativecommons.org/licenses/by-nc-nd/3.0/ |
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND) Arquiberlab http://creativecommons.org/licenses/by-nc-nd/3.0/ |
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND) Arquiberlab http://creativecommons.org/licenses/by-nc-nd/3.0/ |
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND) Arquiberlab http://creativecommons.org/licenses/by-nc-nd/3.0/ |
Archaeometric analysis Chromatographic analysis and structural determination Pottery. Analysis of contents |
Gass Chromatography-Mass Spectrometry Content analysis Destructive method for the identification of the total lipid profile: fatty acids, sterols, wax esters, fatty alcohols, triacylglycerols, etc. Any remains of soil were removed with an electric hand-drill. The sample was then grinded to the appropriate size in an agatha mortar (0.25 mm). Extraction with a mixture chloroform/methanol (CHCl3:MeOH) (2:1 v/v) assisted by ultrasound. Derivatization of lipids to trimethylsilyl derivatives (TMS). The reaction takes place at 70 ° C for 30 min using N,O-bis- (trimethylsilyl) trifluoroacetamide (BSTFA), with 1% trimethylchlorosilane (TMCS). The sample is solved in cyclohexane and then injected in GC-MS. Chromatographic separation is performed applying a adequate temperature program. The analyses were performed using a using a gas chromatography equipment (model Thermo TraceGC Ultra) coupled to a Thermo DC Q II mass spectrometer. Autosampler Thermo Triplus (CICT, University of Jaén). The samples were introduced by on-column injection into a 15 m x 0.25 mm I.D. fused silica capillary column, coated with poly(dimethylsiloxane) stationary phase with 0.1 μm film thickness. Helium was used as the carrier gas (purity 99.99%). |