Catalog - Data.gov

Found 36 datasets matching "elemental analyzer".

Federal
Tables supporting optimization of on-line hydrogen stable isotope-ratio measurements of halogen- and sulfur-bearing organic compounds using elemental analyzer-chromium/high-temperature conversion-isotope-ratio mass spectrometry
- Organization: Department of the Interior
- Updated: 2020-08-31T00:00:00Z
Tabular data demonstrates the performance of a modified reactor setup that enables high-quality hydrogen isotopic analysis of halogen- and sulfur-bearing organics with a modified elemental...
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Search relevance: 117.83 | Views last month: 0
Federal
Sulfur isotope data for: Intermediate sulfidation type base metal mineralization at Aliabad-Khanchy, Tarom-Hashtjin metallogenic belt, NW Iran
- Organization: Department of the Interior
- Updated: 2020-09-29T00:00:00Z
These data represent sulfur isotope analyses of chalcopyrite from a base metal deposit in the Aliabad-Khanchy area in northwestern Iran. Rock samples were collected from outcrops, and chalcopyrite...
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Search relevance: 52.69 | Views last month: 2
Federal
Experimental assessment of EAIRMS normalization methodologies for environmental stable isotopes
- Organization: U.S. Environmental Protection Agency
- Updated: 2024-06-27
Supplementary and data for: Experimental assessment of EAIRMS normalization methodologies for environmental stable isotopes. This dataset is associated with the following publication: Balint,...
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Search relevance: 52.69 | Views last month: 0
Federal
NCCOS Assessment: Orthoimagery and sediment core description data in Galveston Bay, Texas from 20231010 to 20231011 (NCEI Accession 0303740)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-04-29T00:00:00.000+00:00
This dataset contains imagery, GPS coordinates, elevation data, and sediment characteristics collected from three historical marsh mound restoration projects in Galveston Bay, Texas. These three...
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Search relevance: 49.40 | Views last month: 0
Federal
Evaluation of Thermal Optical Analysis Using an Aqueous Binary Mixture
- Organization: National Institute of Standards and Technology
- Updated: 2020-06-03 00:00:00
This dataset contains measurements of organic carbon, elemental carbon, and total carbon in atmospheric particulate matter with the thermal-optical carbon analyzer. The data are associated with...
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Search relevance: 48.39 | Views last month: 0
Federal
Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: Sulfur and oxygen isotopes of dissolved sulfate
- Organization: Department of the Interior
- Updated: 2023-03-30T00:00:00Z
Aliquots of collected water samples were prepared for isotopic analysis at the USGS laboratories in Menlo Park, CA by precipitating dissolved sulfate as barium sulfate, using the methods of...
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Search relevance: 46.08 | Views last month: 0
Federal
Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: Sulfur isotope analysis of samples from outside the Kīlauea summit crater lake
- Organization: Department of the Interior
- Updated: 2023-03-30T00:00:00Z
Samples from outside the crater lake were analyzed for their sulfur isotopic composition. Samples of sulfate alteration and native sulfur from the Kīlauea summit, Halema’uma’u crater (HMM), and...
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Search relevance: 45.35 | Views last month: 0
Federal
Delta-X: Root Stable Isotopes from Herbaceous Wetlands, MRD, LA, USA, August 2021
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This dataset contains carbon-13 (13C) and nitrogen-15 (15N) isotopic signatures of belowground root biomass samples from herbaceous wetlands in the Atchafalaya and Terrebonne basins of the...
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Search relevance: 43.35 | Views last month: 0
Federal
Seawater carbonate chemistry, dissolved metals, and environmental metadata collected from 2009 to 2017 in the shallow venting area of the Kuei-Shan-Tao volcano off Taiwan (NCEI Accession 0175781)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2018-09-20T00:00:00.000+00:00
A time-series of in situ seawater carbonate chemistry, dissolved major and minor metals as well as seawater environmental parameters was compiled from 2009 to 2017 in the shallow hydrothermal...
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Search relevance: 42.74 | Views last month: 0
Federal
Delta-X: Foliar Stable Isotopes, MRD, LA, USA, 2021
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This dataset contains foliar tissue C and N bulk isotopic signatures (delta 13C, delta 15N) of dominant wetland herbaceous species collected at six sites in the Atchafalaya (N = 3) and Terrebonne...
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Search relevance: 39.73 | Views last month: 0
Federal
NCCOS Assessment: Orthoimagery, vegetation, and sediment characteristics in Susquehanna River, Chesapeake Bay on 20230516 (NCEI Accession 0303869)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-05-05T00:00:00.000+00:00
This dataset contains imagery, GPS coordinates, elevation data, types of vegetation, and sediment characteristics collected from Fishing Battery Island. This island was revisited to evaluate...
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Search relevance: 39.45 | Views last month: 0
Federal
Delta-X: Particulate Organic Carbon Concentration from Water Samples, MRD, LA, 2021
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This dataset provides measurements of particulate organic carbon (POC) concentrations made on water samples collected during 2021 in surface waters of the Atchafalaya River and Terrebonne Basins,...
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Search relevance: 37.11 | Views last month: 0
Federal
NARSTO EPA Supersite (SS) Pittsburgh Particulate Matter (PM) Composition Data
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
NARSTO_EPA_SS_PITTSBURGH_PM_COMPOSITION_DATA is the North American Research Strategy for Tropospheric Ozone (NARSTO) Environmental Protection Agency (EPA) Supersite (SS) Pittsburgh Particulate...
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- +7 more
Search relevance: 37.10 | Views last month: 0
Federal
SAFARI 2000 Plant and Soil C and N Isotopes, Southern Africa, 1995-2000
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set contains measurements of the concentration and stable carbon (13C / 12C) and nitrogen (15N / 14N) isotope ratios of plant (leaves, roots and fungi) and soil samples from southern...
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Search relevance: 35.41 | Views last month: 0
Federal
Nano Dust Analyzer Project
- Organization: National Aeronautics and Space Administration
- Updated: 2025-04-01
<p> We propose to develop a new highly sensitive instrument to confirm the existence of the so-called nano-dust particles, characterize their impact parameters, and measure their chemical...
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Search relevance: 34.57 | Views last month: 0
Federal
Carbon Isotopes, Total Organic Carbon, Programmed Pyrolysis, Volcanic Zircon U-Pb, and Geochemistry Data from the Hue Shale, Arctic Alaska - 2024
- Organization: Department of the Interior
- Updated: 2024-09-11T00:00:00Z
This dataset contains results from a stratigraphic section of the Hue Shale located along the Jago River in the Arctic National Wildlife Refuge at 69.9099, -143.3947 (WGS84). Sample heights were...
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Search relevance: 34.50 | Views last month: 0
Federal
Reflectance data from figures in: Using X-ray spectrum of carbon in electron microprobe analysis to determine thermal maturity of organic matter in mudstones
- Organization: Department of the Interior
- Updated: 2026-01-21T00:00:00Z
Conventional methods of assessing organic matter (OM) thermal maturity have limitations and often fail to reflect the geochemical heterogeneity between individual organic phases in mudstone...
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Search relevance: 33.04 | Views last month: 0
Federal
NARSTO EPA Supersite (SS) Fresno, Particulate Matter (PM) 2.5 Organic and Elemental Carbon Data
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
NARSTO_EPA_SS_FRESNO_PM25_OC_EC is the North American Research Strategy for Tropospheric Ozone (NARSTO) Environmental Protection Agency (EPA) Supersite (SS) Fresno, Particulate Matter (PM) 2.5...
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Search relevance: 26.81 | Views last month: 1
Federal
Silicified wood from around Old Faithful Geyser, Yellowstone National Park: Radiocarbon Dating
- Organization: Department of the Interior
- Updated: 2020-08-27T00:00:00Z
Radiocarbon dating of silicified wood was performed at the U.S. Geological Survey’s Radiocarbon Laboratory in Denver, Colorado. All samples were chemically treated using the standard...
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Search relevance: 24.41 | Views last month: 0
Federal
NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon, nitrogen and sulfur stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2019 (NCEI Accession 0304324)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-05-22T00:00:00.000+00:00
This dataset contains bulk tissue carbon (delta-13C), nitrogen (delta-15N), and sulfur (delta-34S) stable isotope values from sediment samples, marsh primary producers, marsh invertebrates, and...
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Search relevance: 23.45 | Views last month: 0

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