Ceramic vessel 241-2. Sanctuary of Piedra del Águila (Orcera, Jaén, Spain)

Ceramic fragment 241-2 from UEC 4 of the Iberian sanctuary of Piedra del Águila (Orcera, Jaén, Spain). Wheelmade ceramic, oxidizing firing. It has no decoration. The analysis of contents was carried out using GC-MS obtaining a profile characteristic of beeswax.

The chemical markers of beeswax identified are alkanes nC27 to nC33, long chain alcohols C24 (OH) to C34 (OH), esters of palmitic acid waxes W40-W50 and hydroxymonosters W(OH)40 a W(OH)48.

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Dimensions

: 9.5 Centimeters

: 9 Centimeters

Materials

pottery

Temporal

: Iberians, Iberian

: 3rd ct. BC

Spatial

: Piedra del Águila

: Orcera, Jaén, Spain

: WGS84

 

Copyrights

Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)

Digital Resources

  • Photo. Ceramic vessel 241-2 Instituto Universitario de Investigación en Arqueología Ibérica

    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
  • Photo. Interior of the sanctuary Instituto Universitario de Investigación en Arqueología Ibérica

    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
  • GC-MS. Ceramic vessel 241-2 Instituto Universitario de Investigación en Arqueología Ibérica

    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/

Activities

Archaeometric analysis

Chromatographic analysis and structural determination

Pottey. Content analysis

University Research Center for Iberian Archaeology

Gass Chromatography-Mass Spectrometry

Pottery. Lipids 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 the mixture chloroform/methanol (CHCl3:MeOH) (2:1 v/v) assisted by ultrasound. Derivatization of lipids to trimethylsilyl derivatives (TMS). The reaction tales place at 70 ºC 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 an adequate temperature programme.

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%)

 

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