Start Radiocarbon dating of bone apatite by step heating

Radiocarbon dating of bone apatite by step heating

Criteria are presented for the identification of diagenetic alteration of carbon and nitrogen isotope ratios of bone and tooth collagen prepared by a widely used method.

Since collagen preservation can vary greatly within prehistoric sites, these attributes should be reported for each specimen.

For bones, we provide conventional collagen extraction techniques and subsequent ultrafiltration methods if requested.

If you require ultrafiltration, please contact us before sending your samples.

For bird and fish bones, please consult the lab for sufficient sample size.

Teeth – For human teeth, preferred samples are single complete incisor or canine. For animal teeth, the sample size depends on the animal. For small animals, please consult the lab regarding the appropriate quantity.

Carbon and nitrogen concentrations and C: N ratios are relatively constant over a wide range of collagen concentrations.

However, prehistoric specimens with very low collagen concentrations have highly variable C: N ratios, very low carbon and nitrogen concentrations in collagen, and stable carbon and nitrogen isotope ratios unlike collagen.

We accept extracted bone collagen for radiocarbon dating.