Ams radiocarbon dating labs
The predominance of 14C-depleted air in the northern hemisphere is the result of burning of fossil fuels, which contian zero radiocarbon.
Carbon dioxide levels have risen rapidly since about 1850 AD. Figure 2: The carbon cycle is the sum of interacting processes that act to exchange carbon amoung atmosphere, land, or ocean are relatively small and for the most part have large uncertianty.
At present, too few measurements of 14C in the atmosphere exist to explicitly test the model prediction shown in the figure left.
Accelerator mass spectrometry (AMS) is a form of mass spectrometry that accelerates ions to extraordinarily high kinetic energies before mass analysis.
Reporting time for fast handling is maximum 6 weeks but normally 3-4 weeks.
All samples submitted for dating must be accompanied by a sample description form (doc).