Carbon dating of fossils


10-May-2020 14:01

There are three principal techniques used to measure carbon 14 content of any given sample— gas proportional counting, liquid scintillation counting, and accelerator mass spectrometry.

Gas proportional counting is a conventional radiometric dating technique that counts the beta particles emitted by a given sample. In this method, the carbon sample is first converted to carbon dioxide gas before measurement in gas proportional counters takes place.

carbon dating of fossils-82

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Physical and chemical pretreatments are done on these materials to remove possible contaminants before they are analyzed for their radiocarbon content.American physical chemist Willard Libby led a team of scientists in the post World War II era to develop a method that measures radiocarbon activity.



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