Samples of tooth enamel are used for individual dosimetry by electron spin resonance (ESR) spectrometry.

These have included passive gamma ray spectrometry, passive and active neutron coincidence counting and neutron multiplicity measurements.

As protein detection technologies have increased in sensitivity, such as with improvements in mass spectrometry techniques, more numerous proteins have been attributed to the PSD.

Chemical compounds exist in nature as mixtures, so the combination of liquid chromatography and mass spectrometry (LC MS) is often used to separate the individual chemicals.

And so by applying ancient DNA sequencing and protein mass spectrometry technologies to ancient dental calculus, we can generate immense quantities of data that then we can use to begin to reconstruct a detailed picture of the dynamic interplay between diet, infection and immunity thousands of years ago.

And so by applying ancient DNA sequencing and protein mass spectrometry technologies to ancient dental calculus, we can generate immense quantities of data that then we can use to begin to reconstruct a detailed picture of the dynamic interplay between diet, infection and immunity thousands of years ago.