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Radiocarbon dating is a scientific analytical technique used for determining the age of samples which were once alive (eg. All organisms contain carbon, some of which is radioactive 14C, an isotope that is continuously being formed in the upper atmosphere.
As living organisms take up radiocarbon along with other carbon atoms, the ratio between the two forms remains constant.
An extra charge may be made for samples requiring special or difficult processing methods, following consultation with the submitter. For this purpose we use only creditable laboratories offering competitive rates.Radiocarbon dating analyses may be carried out on diverse natural materials such as lake sediments, groundwaters and surface waters, tree-rings, ice-cores, corals, soils and air.We know that it is older than Christendom, but whether by a couple of years or a couple of centuries, or even by more than a millenium, we can do no more than guess." [Rasmus Nyerup, (Danish antiquarian), 1802 (in Trigger, 19)].The person who wrote these words lived in the 1800s, many years before archaeologists could accurately date materials from archaeological sites using scientific methods.