Leibniz laboratory for radiometric dating and isotope research

25-Oct-2017 21:50

Please contact us if you want to analyze microgram samples or individual organic compounds and if you have questions regarding sample amount, sampling or packing.

top Please email the data sheet and table to: [email protected] At the start of sample processing, each organic sample and most carbonate samples are inspected under a light microscope where recognizable organic fragments (charcoal, wood, seeds, leaves, pollen, etc.) are selected for dating and contaminants such as rootlets, clothing fiber or hair are removed.

Identifiable samples (macrofossils) with high carbon contents are preferred over sediments and soils.

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Various exchange processes between the atmosphere, the biosphere, and the hydrosphere result in a dynamic equilibrium between C abundance ratio by counting the isotopes themselves.

This makes it possible to reduce the necessary sample size from over 1 gram to less than 1 milligram of carbon and the measuring time from days to hours.