Total organic carbon and total nitrogen (TOC and TN) concentration of the Northeast Greenland (NEG) shelf sediments from POLARSTERN cruise PS109

Samples for the assessment of total organic carbon and total nitrogen (TOC and TN) content in the sediment on the Northeast Greenland shelf have been collected with R/V Polarstern during PS109 between September and October 2017 using a camera-equipped multiple corer (TV-MUC; core area 0.007 m²). Upon arrival on deck, the upper 5 cm of three MUC cores were sliced into 1cm intervals, using a cut-off syringe, and then stored at -20°C. The samples were dried at 60°C, subsequently treated with hydrochloric acid in order to remove the inorganic carbon until the sediment was not bubbling anymore, and then dried again at 60°C. Finally, percent TOC and TN were determined using an ELTRA CS2000 Carbon Analyzer.