Applicable beyond the time range of radiocarbon dating, amino-acid racemization is used primarily to date samples of

Amino-acid racemization is primarily used to date samples of bones, applicable beyond the time of range of radiocarbon dating. Amino-acid Racemization, the AAR rates not only change of the temperature but also with the concurrent effects of pH changes. L-amino acid is an example of racemization which is the process in which one enantiomer of a compound.