I have some pre-Hispanic pottery samples on which I conducted the procedure established by the Archaeological Prospection Laboratory of UNAM for chemical residues (phosphates, protein residues, fatty acids, etc.). I have several samples with high fatty acid content. I would like to perform a lipid analysis on the samples that have tested positive (using chromatography or a similar technique). Could you recommend laboratories that offer this service externally? I would appreciate any information regarding this matter.
Hi Javier Sandoval , good morning.
If you have the extracts of the fatty acids and a small sample, you could use direct analysis mass spectrometry at ambient pressure to identify them according to their m/z, specifically a mass dart (MS-DART). MS-DART allows identification of low molecular weight molecules, little sample is needed, usually no additional preparation, and large amounts of sample are not needed
Hola Emanuel. Gracias por contestar. Yo tengo las muestras cerámicas (tanto en fragmento como en polvo) y lo que requiero es el laboratorio que brinde el servicio de análisis para poderles enviar las muestras.
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