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These prices include sampling, chemical pre-treatment, stable carbon isotope and AMS isotope measurement for samples relevant to research in Archaeology or Environmental Science.We will also give advice on the choice of samples for dating and help in the calibration and analysis of dates in context. Under a microscope, a lab technician cleans a tiny wood chip extracted from an American museum treasure.This fragment no bigger than a fingernail is enough to divine whether the artefact it came from is really the Roman musical instrument its owners believe it to be.This section covers the submission of standard sample types.
We also offer liquid scintillation analysis using an extra low background Quantulus 1220 for high precision measurements on benzene.We are using the AMS method (Accelerator Mass Spectrometry). C-H-N analyses are also available now (possibility to get the percentages of C (Carbon), H (Hydrogen) and N (Nitrogen) for dry samples.The analyses are processed with a Leco CHN628 elemental analyzer.CEN radiochronology laboratory also offers Pb-210 dating.
It is possible to count the following radionuclides: Pb-210, Cs-137, Am-241, Cd-109, Co- 57 as well as Ra-226 (which is the average of Pb-214 and Bi-214) in sediments using the HPGe method (High-Purity Germanium detector). These steps (drying of the sample, crushing and homogenization) can be done by the customer, or by our people at the laboratory, which will make for a slightly higher price per sample.Users who have grants from the National Science Foundation are eligible for a reduction (depending on type of sample) from the regular fees if AMS dating from part of the NSF grant.