Scientist using an elemental analyzer coupled to a mass spectrometer to analyse and purify carbon produced from incineration of organic samples,as preparation for radiocarbon dating them. The analysis of the total gases produced by a sample is done by an integral mass spectrometer and the carbon fraction converted to graphite pellets,which are used to determine the value of the carbon-14 isotope by an accelerator mass spectrometer. Evaluation of this figure and comparison with the proportion of carbon-12 present leads to a figure for an age of the original sample | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / King-Holmes, James |
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