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Autosampler for Isotopes
After multiple iterations, the autosampler finally works. While I assembled the hardware, Stefan Seeger did all the software programming and designed the PCBs. Our System currently has the capacity to load 46 sample bags. The samples are each pricked with a cannula which is connected to a valve. The valves can individualy be opened, allowing…
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Field Campaign Sauerland
The last week of July was the fieldcampaign in Sauerland where we also dug three trenches for Subsurface Flow Measurement. This time we chose a mixed forest, clearcut and pasture site. Upslope of the trenches we also drilled soilcores and sampled eDNA, water-soluble organic carbon and water stable isotopes in different soil layers. Per Trench…