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Found 8 datasets matching "spectrophotometric pH".

#1 Federal
UV-visible absorbance spectra of purified and unpurified m-cresol purple samples in sodium hydroxide and sodium chloride solutions at pH 12
- Organization: National Institute of Standards and Technology
- Updated: 2023-07-13 00:00:00
M-cresol purple is the most widely used pH indicator dye for seawater pH measurements. Impurities in the indicator are known to absorb strongly at one of the wavelengths used in spectrophotometric...
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Search relevance: 120.75 | Views last month: 0
#2 Federal
Water temperature, salinity, total alkalinity, pH, partial pressure of CO2 (pCO2), and calcite saturation measured using water samples collected at the Mukilteo Research Station located in the Puget Sound, WA from 2018-08-26 to 2019-07-11 (NCEI Accession 0300467)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-01-07T00:00:00.000+00:00
This dataset contains the seawater chemistry monthly means with standard deviations measured using water samples collected at the Mukilteo Research Station located in the Puget Sound, WA from...
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Search relevance: 76.53 | Views last month: 0
#3 Federal
Surface underway measurements of pH, salinity and water temperature during R/V Xue Long CHINARE2018 Expedition (EXPOCODE 76XL20180723) in the Japan Sea, Sea of Okhotsk, North Pacific Ocean, Bering Sea, Chukchi Sea and Arctic Ocean from 2018-07-23 to 2018-09-22 (NCEI Accession 0233453)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-05-20T00:00:00.000+00:00
This dataset includes surface underway measurements of pH, salinity and water temperature obtained during R/V Xue Long CHINARE2018 Expedition (EXPOCODE 76XL20180723) Japan Sea, Sea of Okhotsk,...
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Search relevance: 67.62 | Views last month: 0
#4 Federal
Depth, salinity, temperature, pH, total alkalinity, and dissolved inorganic carbon collected from CTD profiler equipped with a pH sensor and Niskin bottles, using a spectrophotometer, open-cell potentiometric titration, and a Licor-700 CO2 detector at the University of Washington’s Friday Harbor Laboratory or a CO2 coulometer at the University of Washington’s School of Oceanography from 2012-04-09 to 2012-06-16 (NCEI Accession 0259305)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2022-08-31T00:00:00.000+00:00
We characterized the pH environment currently experienced by Euphausia pacifica eggs and larvae at 2 stations in the northern end of Hood Canal in Puget Sound, Washington, USA (47.61, -122.94 and...
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Search relevance: 67.19 | Views last month: 0
#5 Federal
National Coral Reef Monitoring Program: Dissolved inorganic carbon, total alkalinity, pH and other variables collected from surface discrete measurements using Coulometer, alkalinity titrator and other instruments from the Florida Keys, Dry Tortugas, Flower Garden Banks and Southeast Florida, from 2024-01-02 to 2024-12-26 (NCEI Accession 0308300)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-09-30T00:00:00.000+00:00
This dataset contains carbonate chemistry data collected at both random locations and existing long-term sites in the Florida Keys, Dry Tortugas, Flower Garden Banks and Southeast Florida as part...
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Search relevance: 53.81 | Views last month: 0
#6 Federal
Total pH and alkalinity and other water quality, carbonate chemistry, and physiological variables collected from laboratory experiment observations using the m-cresol dye spectrophotometric and open-cell potentiometric methods and other methods in the Mid-Atlantic region from 2019-07-26 to 2019-09-12 (NCEI Accession 0301881)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-02-21T00:00:00.000+00:00
This dataset contains discrete water sample and physiological data from a laboratory experiment that took place July 26 - September 12, 2019 to observe how ocean acidification might impact the...
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Search relevance: 44.80 | Views last month: 0
#7 Federal
Pore water chemistry of wetlands in Interior and Southcentral Alaska, 2015 and 2016
- Organization: Department of the Interior
- Updated: 2020-08-20T00:00:00Z
The pore water of eight wetlands in Interior and Southcentral Alaska were collected in 2015 (17 July – 22 July) and 2016 (12 July – 16 July). Wetlands were selected to span a range in trophic...
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Search relevance: 32.08 | Views last month: 0
#8 Federal
SALINITY, SEA SURFACE TEMPERATURE, and others collected from the R/V Mirai in Bering Sea - Coastal Waters of Western Alaska from 2024-10-02 to 2024-10-10 (NCEI Accession 0307282)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-08-25T00:00:00.000+00:00
This dataset contains physical and biological oceanographic measurements, and atmospheric parameters were taken by CTD, bottles, and other instruments from the R/V Mirai, MR24-07 Leg1, in the...
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Search relevance: 15.34 | Views last month: 0

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