Will radiocarbon dating work well for small samples of 10 mg or less

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The freshwater reservoir effect can result in anomalously old radiocarbon ages of samples from lakes and rivers. Radiocarbon dating is based on the continuous decay of the radioactive isotope of carbon, 14 C. Thank you for visiting nature. Accelerator mass spectrometry AMS is the ultimate technique for measuring rare isotopes in small samples. Collagen is the dominant organic component of bone and is intimately locked within the hydroxyapatite structure of this ubiquitous biomaterial that dominates archaeological and palaeontological assemblages.

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Because hard tissues can be radiocarbon dated, they are key to establishing the archaeological chronologies, palaeoenvironmental reconstructions and historical-biogeographical processes of the last 50, years.

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One of the aims was to minimize measurement cost by emphasizing large scale projects plus encouraging users to carry out sample processing at their own institutions. A living plant contains approximately the same fraction of carbon as in atmospheric carbon dioxide. A living plant contains approximately the same fraction of carbon as in atmospheric carbon dioxide. 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. Very small samples from the Shroud of Turin have been dated by accelerator mass spectrometry in laboratories at Arizona, Oxford and Zurich.

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