Microdosage de la matière organique des os

摘要

Radiocarbon bone dating is one of the main activity of the dating Laboratory of Lyon. The analysis is practised on the main component of the organic matter of bone : collagen. This collagen disappears more or less quickly according to the physico-chemical conditions of the soil where the bone is buried. We found it useful to conceive a simple method, requiring small quantities of sample, in order to measure the organic matter still content in the bone as soon as it reaches the laboratory. Two remarks can be made : - there is a link between the titrations and the obtained quantity of collagen, - in a given site, there is a link between the quantity of organic matter in the bone and its age. With a more acute method, and a careful study of the soil where the bone is buried, these micro-titrations could help us give the relative ages samples from a same site.