The C and N isotopies of different plants, algae or phytoplankton differ significantly. The isotopy of the same plant at different sites can also differ significantly. The C and N isotopy in organic material in sediments and soils can be used, for example, to reconstruct the origin and composition of plant material at that site.

We analyse C and N isotopy (δ¹³C, δ¹⁵N) in dried plant material or in pulverised soils and sediments after expulsion of the carbonate carbon fraction.

We are happy to advise you to determine the appropriate analysis for your problem.