Collagen content dating

Specific changes in its amino acid structure (racemization or epimerization) which occur at a slow, relatively uniform rate, are measured after the organism's death.The basis for the technique is the fact that almost all amino acids change from optically active to optically passive compounds (racemize) over a period of time.

Our sample set consists of 5 modern and 47 archaeological animal and human bones from the southern and western parts of South Africa.We accept cheque (preferred), credit card, and wire transfer.For non-Canadian first time users, payment must be received in full before results are released.SYNONYMS OR RELATED TERMS: amino-acid dating; aminostratigraphy; amino-acid racemization, amino acid racemization CATEGORY: technique DEFINITION: A method of absolute (chronometric) dating which is hoped to fill the gap between radiocarbon dates and potassium-argon dates.It is used for human and animal bone and other organic material.

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