14c isotope dating
Very small samples (less than 300 mg) are analyzed by accelerator mass spectrometry (AMS).
We have subcontractor agreements with several AMS facilities around the world.
With radiocarbon Radiocarbon dating is reliant on a carbon isotope, one of two or more atoms having the same atomic number but different atomic masses (1), known as carbon 14.
There are three naturally occurring isotopes of carbon. Carbon 14 is extremely rare: one carbon 14 atom exists for every 1,000,000,000,000 carbon 12 atoms in living matter. When an organism dies there is no longer an uptake of C14 from the environment, only decay. The radioactive C14 atoms decay with a constant half-life Libby calculated at 5568 - 30 years.
Measurements of the Libby half-life showed that Libby was about .3% too low.
Charcoal and wood samples should be wrapped in aluminum foil or heavy plastic and should not be wrapped in paper.
Contact us to discuss turn-around time and scheduling.
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