http://lod.bco-dmo.org/id/dataset/778000
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2019-09-30
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Calibration of the Isotope Ratio Mass Spectrometer vs. aliquots of 15N2 gas diluted in air then helium
2019-10-02
publication
2019-10-02
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2020-01-06
publication
https://doi.org/10.1575/1912/bco-dmo.778000.1
Julie Granger
University of Connecticut
principalInvestigator
Annie Bourbonnais
University of Massachusetts Dartmouth
principalInvestigator
Samuel T. Wilson
University of Hawai'i
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Granger, J., Bourbonnais, A., Wilson, S. (2019) Calibration of the Isotope Ratio Mass Spectrometer vs. aliquots of 15N2 gas diluted in air then helium. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-10-02 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.778000.1 [access date]
Calibration of the Isotope Ratio Mass Spectrometer vs. aliquots of 15N2 gas diluted in air then helium Dataset Description: <p>Measurements of the 15N2 atom % in prepared standards and solutions.</p> Methods and Sampling: <p>A serial dilution of 98-99% 15N2 gas stock (Cambridge Isotope Laboratories, Lot #I-21065) in air and helium returned the expected signal (i.e., a slope not significantly different than unity) on a continuous flow Delta V Advantage Plus IRMS (Smith et al. 2015), demonstrating the accuracy of the IRMS over a wide range of 15N2 abundances.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1732246 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1732246
completed
Julie Granger
University of Connecticut
860-405-9094
Department of Marine Sciences 1080 Shenecossett Road
Groton
CT
06340
USA
julie.granger@uconn.edu
pointOfContact
Annie Bourbonnais
University of Massachusetts Dartmouth
abourbonnais@seoe.sc.edu
pointOfContact
Samuel T. Wilson
University of Hawai'i
0191-208-0018 (in the UK)
Newcastle University School of Natural and Environmental Sciences Drummond Building, Devonshire Terrace
Newcastle-Upon Tyne
NE1 7RU
United Kingdom
sam.wilson@newcastle.ac.uk
pointOfContact
asNeeded
Dataset Version: 1
Unknown
comment
expected
measured
Isotope Ratio Mass Spectrometer
Membrane Inlet Mass Spectrometer
theme
None, User defined
comments
No BCO-DMO term
featureType
BCO-DMO Standard Parameters
Isotope-ratio Mass Spectrometer
Membrane Inlet Mass Spectrometer
instrument
BCO-DMO Standard Instruments
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
EAGER: Collaborative Research: Detection limit in marine nitrogen fixation measurements - Constraints of rates from the mesopelagic ocean
https://osprey.bco-dmo.org/project/772534
EAGER: Collaborative Research: Detection limit in marine nitrogen fixation measurements - Constraints of rates from the mesopelagic ocean
<p>NSF Award Abstract:<br />
The availability of nitrogen is required to support the growth and production of organisms living in the surface of our global ocean. This element can be scarce. To alleviate this scarcity, a special class of bacteria and archaea, called nitrogen fixers, can derive the nitrogen needed for growth from nitrogen gas. This project would carefully examine one specific method for measuring nitrogen fixation that has been used recently to suggest the occurrence of small amounts of nitrogen fixation in subsurface ocean waters. If these reports are verified, then a revision of our understanding of the marine nitrogen cycle may be needed. The Ocean Carbon and Biogeochemistry program will be used as a platform to develop community consensus for best practices in nitrogen fixation measurements and detection of diversity, activity, and abundances of the organisms responsible. In addition, a session will be organized in a future national/international conference to communicate with the broader scientific community while developing these best practices.</p>
<p>The goal of this study is to conduct a thorough examination of potential experimental and analytical errors inherent to the 15N2-tracer nitrogen fixation method, in tandem with comprehensive molecular measurements, in mesopelagic ocean waters. Samples will be collected and experimental work conducted on a cruise transect in the North Atlantic Ocean, followed by analytical work in the laboratory. The specific aims of this study are to (1) determine the minimum quantifiable rates of 15N2 fixation based on incubations of mesopelagic waters via characterization of sources of experimental and analytical error, and (2) seek evidence of presence and expression of nitrogen fixation genes via comprehensive molecular approaches on corresponding samples. The range of detectable rates and diazotroph activity from the measurements made in this study will be informative for the understanding of the importance of nitrogen fixation in the oceanic nitrogen budget.</p>
EAGER NitFix
largerWorkCitation
project
eng; USA
oceans
2019-10-02
North Atlantic Ocean, Pacific Ocean
0
BCO-DMO catalogue of parameters from Calibration of the Isotope Ratio Mass Spectrometer vs. aliquots of 15N2 gas diluted in air then helium
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/778017.rdf
Name: comment
Units: unitless
Description: <p>sample type</p>
http://lod.bco-dmo.org/id/dataset-parameter/778018.rdf
Name: expected
Units: unitless
Description: <p>Expceted 15N2 air He dil (m/z 30/28 ratio x 100)</p>
http://lod.bco-dmo.org/id/dataset-parameter/778019.rdf
Name: measured
Units: unitless
Description: <p>measured m/z 30/28 ratio x 100 on GC-IRMS</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
121
https://darchive.mblwhoilibrary.org/bitstream/1912/25115/1/dataset-778000_caliso__v1.tsv
download
https://doi.org/10.1575/1912/bco-dmo.778000.1
download
onLine
dataset
<p>A serial dilution of 98-99% 15N2 gas stock (Cambridge Isotope Laboratories, Lot #I-21065) in air and helium returned the expected signal (i.e., a slope not significantly different than unity) on a continuous flow Delta V Advantage Plus IRMS (Smith et al. 2015), demonstrating the accuracy of the IRMS over a wide range of 15N2 abundances.</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing Notes:<br />
- table was extracted from original spreadsheet.<br />
-&nbsp;added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Isotope Ratio Mass Spectrometer
Isotope Ratio Mass Spectrometer
PI Supplied Instrument Name: Isotope Ratio Mass Spectrometer PI Supplied Instrument Description:continuous flow Delta V Isotope Ratio Mass Spectrometer (Smith et al. 2015), and continuous flow-GV Isoprime IRMS (Charoenpong et al., 2014) Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS Instrument Description: The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/
Membrane Inlet Mass Spectrometer
Membrane Inlet Mass Spectrometer
PI Supplied Instrument Name: Membrane Inlet Mass Spectrometer PI Supplied Instrument Description:Membrane Inlet Mass Spectrometer (Bay Instruments) Instrument Name: Membrane Inlet Mass Spectrometer Instrument Short Name:MIMS Instrument Description: Membrane-introduction mass spectrometry (MIMS) is a method of introducing analytes into the mass spectrometer's vacuum chamber via a semipermeable membrane.