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The lab also offers C: N, %C and %N measurements on collagen extracted from non-cremated bones in addition to δ15N and δ13C at no additional cost for samples sent for radiocarbon dating.

The lab also provides stable isotope analyses on a standalone basis.

Carbon-14 is radioactive, with a half-life of about 5,700 years.(kär'bən) Symbol CA naturally abundant, nonmetallic element that occurs in all organic compounds and can be found in all known forms of life.Diamonds and graphite are pure forms, and carbon is a major constituent of coal, petroleum, and natural gas.But when I read articles about the results, they never mention the uncalibrated data, which could actually be correct. I am not an expert in every subject that impinges on the discussion, but I will do my best.There are two reasons uncalibrated dates must be mentioned: 1) this prevents people from making up any number they please, and 2) it is for the sake of posterity, where future scientists can check the results and apply new ideas of calibration. Radiocarbon dates are affected by many outside factors.