Publication Date:
2024-04-25
Description:
DIC measurement: an aliquot of the slurry was filtered with a 0.2-µm filter to remove cells and other particles. After filtration, 1 mL of samples were acidified with 100 μL 45% phosphoric acid overnight in an Exetainer® vial pre-purged with CO2-free air before analysis. All samples were measured with a Delta Ray Isotope Ratio Infrared Spectrometer (IRIS) with URI Connect and autosampler (Thermo Fisher Scientific, Germany) with an analytical error of ±1‰. All isotopic values are reported in the delta notation as δ13C relative to the Vienna PeeDee Belemnite (VPDB) standard. Deviations of triplicate isotopic measurement of sample DIC were between ± 1‰ and ± 1,000‰ (for DIC with label uptake of 〉10,000‰). DIC concentration was calculated from the released amount of CO2 by calibration with sodium hydrogen carbonate solution.
Keywords:
amino acids; Carbon, inorganic, dissolved; Center for Marine Environmental Sciences; ClusterOceanFloor; Delta Ray Isotope Ratio Infrared Spectrometer (IRIS) with URI Connect and autosampler (Thermo Fisher Scientific, Germany); Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DIC; HE483; HE483/25-2; Heincke; lipidomics; MARUM; MUC; MultiCorer; North Sea; Priming effect; RNA-SIP; Sample ID; Secondary production; stable isotope probing; Substrate type; The Ocean Floor - Earth's Uncharted Interface; Time in days; Volume; δ13C, dissolved inorganic carbon
Type:
Dataset
Format:
text/tab-separated-values, 560 data points
