http://lod.bco-dmo.org/id/dataset/756682
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
2019-02-22
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Sulfur Near Edge X-ray Fluorescence Spectroscopy Data for standard materials
2019-02-22
publication
2019-02-22
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2019-03-15
publication
https://doi.org/10.1575/1912/bco-dmo.756682.1
Ellery Ingall
Georgia Institute of Technology
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: Ingall, E. (2019) Sulfur Near Edge X-ray Fluorescence Spectroscopy Data for standard materials. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-02-22 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.756682.1 [access date]
Sulfur Near Edge X-ray Fluorescence Spectroscopy Data for standard materials Dataset Description: Methods and Sampling: <p>Methodology: The sulfur standards were ground using an agate mortar and pestle to the consistency of a fine talcum powder (approximately 10 um). A cellulose acetate filter was then gently dredged through a small quantity (less than 1 mg) of powder placed on a microscope slide. This procedure produced a thin and almost imperceptible coating on the filter in order to limit the thickness and thus self-absorption. S-NEXFS spectra of sulfate standards were collected in bulk mode. Self-absorption must be carefully controlled when measuring fluorescent X-rays from thick specimens; however, the effects of self-absorption are limited to the region of the spectrum above the K-edge. In our repeated measurements, the post-edge features were consistent and reproducible, which allows discrimination of different sulfate standards.</p>
<p>Sampling and analytical procedures: S compounds and minerals were obtained from chemical supply houses or mineral dealers. See papers cited below for details.</p>
<p>Instruments: X-ray fluorescence microscope located at beamline 2-ID-B at the Advanced Photon Source, Argonne National Laboratory. The beamline is optimized to examine samples over a 1–4 keV energy range using a focused X-ray beam with a spot size of approximately 60 nanometers squared . The energy was calibrated using an elemental sulfur standard. The whiteline energy of the elemental sulfur standard was aligned to 2472 eV.</p>
<p>Data processing: S-NEXFS data were normalized to create a relative intensity value of approximately 1 for post-edge area of the spectra. The data were also processed using a three-point smoothing algorithm built into the software package Athena to remove high-frequency noise (Ravel and Newville, 2005).</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1357375 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1357375
completed
Ellery Ingall
Georgia Institute of Technology
404-894-3883
Georgia Tech - EAS 311 Ferst Dr.
Atlanta
GA
30332
USA
ingall@eas.gatech.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Energy
Ammonium_Sulfate
Barite
Copper_II_Sulfate
Gypsum
Iron_Ammonium_Sulfate
Iron_III_Sulfate
Jarosite
Magnesium_Sulfate
Potassium_Sulfate
Sodium_Sulfate
X-ray fluorescence microscope
theme
None, User defined
No BCO-DMO term
count
featureType
BCO-DMO Standard Parameters
Fluorescence Microscope
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.
P-NEXFS investigation of the influence of aerosol phosphorus on the Mediterranean Sea
https://osprey.bco-dmo.org/project/753302
P-NEXFS investigation of the influence of aerosol phosphorus on the Mediterranean Sea
<p>NSF Award Abstract:</p>
<p>Primary nutrients, such as nitrogen and phosphorus, are critical for all life on earth, and limited quantities in the marine environment can inhibit primary productivity. Atmospheric aerosols are a significant source of these nutrients to nutrient-poor ocean regions, such as the phosphorus-limited Mediterranean Sea. The availability of phosphorus in aerosols has traditionally been linked to the composition and abundance of different phosphorus phases present. Unfortunately, investigating phosphorus composition in aerosols has been challenging due to methodological limitations until recently. In this study, researchers from Georgia Tech will use a new technique known as synchrotron-based P Near Edge X-ray Fluorescence Spectroscopy, in conjunction with X-ray fluorescence microscopy, to examine the diversity of aerosol phosphorus phases delivered to the Mediterranean Sea. By defining the relationship between air mass source region, aerosol composition, and bioavailability, results from this work will improve current knowledge of the factors regulating productivity in the Mediterranean Sea and help to clarify the potential response of this region to different climate change scenarios.</p>
<p>Broader Impacts: In addition to the valuable insights this project will provide on the controls on productivity and nutrient cycling in the Mediterranean Sea, this study will further education of young scientists, broaden participation of under-represented groups in ocean science, and enhance research infrastructure.</p>
Aerosol P
largerWorkCitation
project
eng; USA
oceans
2019-02-22
Mediterranean
0
BCO-DMO catalogue of parameters from Sulfur Near Edge X-ray Fluorescence Spectroscopy Data for standard materials
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/756696.rdf
Name: Energy
Units: electron volts
Description: <p>X-ray energy</p>
http://lod.bco-dmo.org/id/dataset-parameter/756697.rdf
Name: Ammonium_Sulfate
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756698.rdf
Name: Barite
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756699.rdf
Name: Copper_II_Sulfate
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756700.rdf
Name: Gypsum
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756701.rdf
Name: Iron_Ammonium_Sulfate
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756702.rdf
Name: Iron_III_Sulfate
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756703.rdf
Name: Jarosite
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756704.rdf
Name: Magnesium_Sulfate
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756705.rdf
Name: Potassium_Sulfate
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/756706.rdf
Name: Sodium_Sulfate
Units: x-ray fluorescence counts
Description: <p>Name of sulfur standard or mineral analyzed. Units (x-ray fluorescence counts) are normalized to incoming radiation.</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
16873
https://darchive.mblwhoilibrary.org/bitstream/1912/23841/1/dataset-756682_sulfur-nexfs-standards__v1.tsv
download
https://doi.org/10.1575/1912/bco-dmo.756682.1
download
onLine
dataset
<p>Methodology: The sulfur standards were ground using an agate mortar and pestle to the consistency of a fine talcum powder (approximately 10 um). A cellulose acetate filter was then gently dredged through a small quantity (less than 1 mg) of powder placed on a microscope slide. This procedure produced a thin and almost imperceptible coating on the filter in order to limit the thickness and thus self-absorption. S-NEXFS spectra of sulfate standards were collected in bulk mode. Self-absorption must be carefully controlled when measuring fluorescent X-rays from thick specimens; however, the effects of self-absorption are limited to the region of the spectrum above the K-edge. In our repeated measurements, the post-edge features were consistent and reproducible, which allows discrimination of different sulfate standards.</p>
<p>Sampling and analytical procedures: S compounds and minerals were obtained from chemical supply houses or mineral dealers. See papers cited below for details.</p>
<p>Instruments: X-ray fluorescence microscope located at beamline 2-ID-B at the Advanced Photon Source, Argonne National Laboratory. The beamline is optimized to examine samples over a 1–4 keV energy range using a focused X-ray beam with a spot size of approximately 60 nanometers squared . The energy was calibrated using an elemental sulfur standard. The whiteline energy of the elemental sulfur standard was aligned to 2472 eV.</p>
<p>Data processing: S-NEXFS data were normalized to create a relative intensity value of approximately 1 for post-edge area of the spectra. The data were also processed using a three-point smoothing algorithm built into the software package Athena to remove high-frequency noise (Ravel and Newville, 2005).</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing: modified parameter names (replaced spaces with underscores, removed special characters).</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
X-ray fluorescence microscope
X-ray fluorescence microscope
PI Supplied Instrument Name: X-ray fluorescence microscope PI Supplied Instrument Description:X-ray fluorescence microscope located at beamline 2-ID-B at the Advanced Photon Source, Argonne National Laboratory: The beamline is optimized to examine samples over a 1–4 keV energy range using a focused X-ray beam with a spot size of approximately 60 nanometers squared . The energy was calibrated using an elemental sulfur standard. The whiteline energy of the elemental sulfur standard was aligned to 2472 eV. Instrument Name: Fluorescence Microscope Instrument Short Name: Instrument Description: Instruments that generate enlarged images of samples using the phenomena of fluorescence and phosphorescence instead of, or in addition to, reflection and absorption of visible light. Includes conventional and inverted instruments. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB06/