Investigating the organic residues from the corrosion of a caccabus from Pompeii

Samples from the interior (samples 2-4) and exterior corrosion (samples 5-6) from Pompeii INV10289 a caccabus (a copper-alloy vessel) from Pompeii were characterized by Fourier-Transform Infarred (FTIR), powder X-ray diffraction (XRD), gas chromatography with quadrupole time-of-flight mass spectrometry using a thermal separation probe (GC-QTOF-MS with TSP), ion chromatography with mass spectromtery (IC-MS) and bottom-up proteomics.