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Continuous flow analysis methods for sodium, magnesium and calcium detection in the Skytrain ice core

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اقرأ أكثر حفظ في قائمتي
  • المؤلفون: Grieman, Mackenzie M.; Hoffmann, Helene M.; Humby, Jack D.; Mulvaney, Robert; Nehrbass-Ahles, Christoph; Rix, Julius; Thomas, Elizabeth R.; Tuckwell, Rebecca; Wolff, Eric W.
  • نوع التسجيلة:
    Electronic Resource
  • الدخول الالكتروني :
    http://nora.nerc.ac.uk/id/eprint/530678/1/continuous-flow-analysis-methods-for-sodium-magnesium-and-calcium-detection-in-the-skytrain-ice-core.pdf
    http://nora.nerc.ac.uk/id/eprint/530678/
    https://www.cambridge.org/core/journals/journal-of-glaciology/article/continuous-flow-analysis-methods-for-sodium-magnesium-and-calcium-detection-in-the-skytrain-ice-core/2DFF19E83E59F19646A90C957098E0AE
    http://nora.nerc.ac.uk/id/eprint/530678
    https://www.cambridge.org/core/journals/journal-of-glaciology/article/continuous-flow-analysis-methods-for-sodium-magnesium-and-calcium-detection-in-the-skytrain-ice-core/2DFF19E83E59F19646A90C957098E0AE
    10.1017/jog.2021.75
  • معلومة اضافية
    • Publisher Information:
      Cambridge University Press 2022-02
    • نبذة مختصرة :
      Dissolved and particulate sodium, magnesium and calcium are analyzed in ice cores to determine past changes in sea ice extent, terrestrial dust variability and atmospheric aerosol transport efficiency. They are also used to date ice cores if annual layers are visible. Multiple methods have been developed to analyze these important compounds in ice cores. Continuous flow analysis (CFA) is implemented with instruments that sample the meltstream continuously. In this study, CFA with ICP-MS (inductively coupled-plasma mass spectrometry) and fast ion chromatography (FIC) methods are compared for analysis of sodium and magnesium. ICP-MS, FIC and fluorescence methods are compared for analysis of calcium. Respective analysis of a 10 m section of the Antarctic WACSWAIN Skytrain Ice Rise ice core shows that all of the methods result in similar levels of the compounds. The ICP-MS method is the most suitable for analysis of the Skytrain ice core due to its superior precision (relative standard deviation: 1.6% for Na, 1.3% for Mg and 1.2% for Ca) and sampling frequency compared to the FIC method. The fluorescence detection method may be preferred for calcium analysis due to its higher depth resolution (1.4 cm) relative to the ICP-MS and FIC methods (~4 cm).
    • الموضوع:
      Publication - Article; PeerReviewed
    • Availability:
      Open access content. Open access content
      cc_by_4
    • Note:
      text
      English
    • Other Numbers:
      UKNRA oai:nora.nerc.ac.uk:530678
      Grieman, Mackenzie M.; Hoffmann, Helene M.; Humby, Jack D. ORCID: https://orcid.org/0000-0003-0526-2766 ; Mulvaney, Robert ORCID: https://orcid.org/0000-0002-5372-8148 ; Nehrbass-Ahles, Christoph; Rix, Julius ORCID: https://orcid.org/0000-0002-8048-9445 ; Thomas, Elizabeth R. ORCID: https://orcid.org/0000-0002-3010-6493 ; Tuckwell, Rebecca ORCID: https://orcid.org/0000-0002-6389-3091 ; Wolff, Eric W.. 2022 Continuous flow analysis methods for sodium, magnesium and calcium detection in the Skytrain ice core. Journal of Glaciology, 68 (267). 90-100. https://doi.org/10.1017/jog.2021.75
      1264467657
    • Contributing Source:
      NERC OPEN RES ARCH
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1264467657
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