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OAS accession Detail for 0291764
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| accessions_id: | 0291764 | archive |
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| Title: | Effects of sample volume on N2O recovery and isotopic analysis (Biological Nitrogen Isotope Fractionation project) from 2012-01-31 to 2020-08-24 (NCEI Accession 0291764) |
| Abstract: | This dataset contains chemical data collected from 2012-01-31 to 2020-08-24. These data include Nitrite, Nitrous Oxide, d15N, and stable oxygen ration 18. The instruments used to collect these data include Gas Chromatograph Mass Spectrometer. These data were collected by Julie Granger of University of Connecticut as part of the "CAREER: The biological nitrogen isotope systematics of ammonium consumption and production (Biological Nitrogen Isotope Fractionation)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2022-01-14. The following is the text of the dataset description provided by BCO-DMO: Effects of sample volume on N2O recovery and isotopic analysis Dataset Description: Acquisition Description: Methodology: Sampling and analytical procedures: Effects of sample volume on N 2 O isotope analyses Crimp-sealed vials (20 mL) containing incremental volumes (0 to 14 mL) of DIW or NO 3 - -deplete seawater were sparged with N 2 gas for 30 minutes, aliquoted with N 2 O gas (10 nmol N) and equilibrated for ≥ 24 hours. The N 2 O gas in the vials was then extracted, purified and its N and O isotopic composition analyzed on the isotope ratio mass spectrometer. In a parallel set of experiments conducted at Princeton University, referring to Trial “Bonnie 5nmol”, crimp-sealed vials (20 mL) containing incremental volumes (0 to 9.3 mL) of DIW were sparged with helium gas for 30 minutes, aliquoted with N 2 O gas (5 nmol N) and equilibrated on a shaker for 2 hours. The N 2 O gas in the vials was then extracted with an autosampler needle that only penetrated samples ≥ 8.3 mL. N 2 O thus extracted was purified and its N and O isotopic composition analyzed on an isotope ratio mass spectrometer. |
| Date received: | 20220114 |
| Start date: | 20120131 |
| End date: | 20200824 |
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| Observation types: | chemical |
| Instrument types: | mass spectrometer |
| Datatypes: | DELTA NITROGEN-15, NITRITE, nitrous oxide (N2O), OXYGEN ISOTOPES - OXYGEN-18 |
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| Submitting institution: | Biological and Chemical Oceanography Data Management Office |
| Collecting institutions: | University of Connecticut |
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| Metadata version: | 1 |
| Keydate: | 2024-04-23 14:16:34+00 |
| Editdate: | 2024-04-23 14:16:53+00 |