Dating of ivory from 20th century by determination of ¹⁴C by the direct absorption method.

We aim to date ivory samples by determination of the concentration of (14)C in the sample. However, such data do not always represent unambiguous evidence. In these cases other nuclides have to be additionally analyzed which causes additional costs. To make the dating method still affordable, the direct CO(2) absorption method for analyzing (14)C was tested. Results show that this method has a precision of about 4.0% (95% confidence level) which is good enough for this purpose.