OpenARCHEM

oa2017sam4

oa2017img28

Koh 2008

Record Summary

Sample Results

For more info on sample types and qualities, see Sample Quality Rankings

Source Object Information

  • Source: vat P6267
  • Find Site: Mochlos
    Atlas
  • Site Region: Crete
  • Date Relative: Late Minoan IB
  • Date Absolute: ca. 1500 BCE
  • Production Location:
  • Current Location:

Extraction Notes

  • Archem id: Koh2008Run9.06
  • Notes: Sample taken from vat spout
  • Site id: oa2017sit2
  • Source id: oa2017sou2
  • Equipment id: oa2017equ2
  • Extraction id: oa2017ext4
  • Chromatogram id: oa2017chr4
  • Author id: 2
  • Vetted: true
  • Sample type: new excavation
  • Sample quality: 4

Extraction Protocol

  • Oa id: oa2017ext4
  • Solvent: ethyl acetate
  • Boiled manually: true
  • Notes: Organic residues were extracted within two weeks of excavation; sherds from the vat’s rhyton-spout were boiled using the two extraction solvents in sequence, ethyl acetate first followed by ethanol (or rarely methanol when stores were momentarily depleted)
  • Date: 2004
  • Location: Institute for Aegean Prehistory Study Center, Pacheia Ammos
  • Number: 1

Instrumentation

  • Oa id: oa2017equ2
  • Manufacturer: Agilent
  • Model: 6890N Network 6C
  • Settings: capillary column (30.0 m x 250 mm x 0.15 mm) set to constant flow mode and front inlet. The carrier gas flow (helium) was set to 0.5 ml/min with an average velocity of 41cm/sec. The EPC Split-Splitless Inlet was set to splitless. The GC oven temperature had a set point of 110 degrees Celsius held for 2 minutes and increased by 6 degrees a minute until it hit 250 degrees and then held for 20 minutes
  • Notes: Samples were automatically injected with an Agilent Technologies 7683 Series Injector with 10μl syringe; 1μl was injected for most samples with the exception of runs starting from the 12th one, which had 2μl injections; Before the injection of each sample, the computer automatically cleaned the syringe with 10μl of methylene chloride twice and also primed it twice with the ORA sample pre-injection. Post-injection, the syringe was cleaned four times using 10μl of methylene chloride
  • Detector: Agilent 5973N Network Mass Selective
  • Location: University of Pennsylvania Department of Chemistry
  • Solvent: ethyl acetate