Archaeological samples, objects of art, antiquities, and paleoenvironmental samples are cleaned and prepared for analysis in our modern and well-equipped Pretreatment Lab.
We recognize that each sample that comes through our lab is truly unique. We develop a custom pretreatment plans for each sample, taking into consideration the type of material, the age and amount of material available, as well as the object’s unique depositional history.
We offer many specialty services, including compound-specific analyses and micro-sampling. We are experts in the extraction and purification of bone collagen, as well as bone bioapatite and tooth enamel.
After pretreatment, samples are ready for combustion (organics) or acid hydrolysis (inorganics), which produces CO2 for graphitization.
CO2 samples are converted to graphite in the presence of Fe catalyst according to the hydrogen reduction reaction:
CO2 + 2H2 → C + 2H2O
Our Graphitization Lab is equipped with two custom-built, stainless steel graphitization lines, with a total of 24 reaction modules. Each reaction module is outfitted with its own oven, temperature control, and pressure transducer, to allow precise monitoring and control over each individual sample. This level of control makes it possible to handle ultra-small samples.