Gas proportional counting involves converting samples to CO gas followed by detection and counting of the beta particles.
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There have been different methods of measuring carbon-14 since Willard Libby pioneered the radiocarbon dating technique in the 1940s – from the radiometric techniques of gas proportional counting and liquid scintillation counting to the more recent accelerator mass spectrometry (AMS).
You probably have seen or read news stories about fascinating ancient artifacts.
At an archaeological dig, a piece of wooden tool is unearthed and the archaeologist finds it to be 5,000 years old.
Beta Analytic no longer offers radiometric dating by liquid scintillation counting.
All samples submitted for radiocarbon dating are measured by AMS. You only need to include the confirmation code in the package.
A child mummy is found high in the Andes and the archaeologist says the child lived more than 2,000 years ago.