Radiocarbon dating sample size

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Clearly mark each sample container with the same unique identification number listed on your sample information form.If your samples are such that they may leak from zip-lock bags, then double-bag each sample or wrap them in foil before bagging them.These vastly different projects have one thing in common: They all use accelerators to measure levels of carbon-14 and other isotopes.CAMS is one of several dozen labs worldwide that conduct accelerator mass spectrometry, or AMS.Likewise, other isotopes like beryllium-10 and aluminum-26 divulge how long a sample has been subjected to the constant barrage of cosmic rays that comes with sitting on the surface of Earth—telling geologists, for example, how quickly a region of rock is eroding or how long ago an earthquake brought sediment to the surface.Carbon-14 also reveals whether a sample of ivory was removed from an animal before or after the 1989 ban on ivory sales.The recommended sample sizes listed below are conservative. Please contact us to discuss your available options.

Whenever possible, remove roots and other obvious contaminants from the portion of the sample that you want dated.Stable isotope analysis is undertaken solely to provide supplemental information such as photosynthetic pathway, and is conducted independently of radiocarbon analysis.If you don't need δC information, you may wish to consider omitting stable isotope analysis.Samples should contain at least one milligram of carbon after pretreatment.Standard pretreatment procedures typically remove about half of the original sample material.

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