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| Verfasst von: | Schubert, Michael [VerfasserIn]  |
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| | Kopitz, Jürgen [VerfasserIn] |
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| | Taeglich, Sabine [VerfasserIn] |
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| | Lucks, Christian [VerfasserIn] |
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| | Knoeller, Kay [VerfasserIn] |
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| Titel: | Radio-sulphur as groundwater residence time tracer |
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| Titelzusatz: | adapting the 35S extraction approach for water samples rich in sulphate |
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| Verf.angabe: | Michael Schubert, Juergen Kopitz, Sabine Taeglich, Christian Lucks, Kay Knoeller |
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| E-Jahr: | 2024 |
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| Jahr: | December 2024 |
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| Umfang: | 6 S. |
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| Illustrationen: | Illustrationen |
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| Fussnoten: | Online verfügbar 19 October 2024, Version des Artikels 19 October 2024 ; Im Text ist "35" hochgestellt ; Gesehen am 04.04.2025 |
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| Titel Quelle: | Enthalten in: Journal of environmental radioactivity |
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| Ort Quelle: | New York, NY [u.a.] : Elsevier, 1984 |
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| Jahr Quelle: | 2024 |
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| Band/Heft Quelle: | 280(2024) vom: Dez., Artikel-ID 107553, Seite 1-6 |
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| ISSN Quelle: | 1879-1700 |
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| Abstract: | Cosmogenic radio-sulphur (35S) is applicable as aqueous environmental tracer for investigating sub-yearly groundwater residence times. For the purpose 35SO4 has to be extracted from large-volume water samples (ca. 20 l) and measured by liquid scintillation counting (LSC). Publications that discuss sample preparation approaches focus on waters with low or moderate sulphate concentrations based on sulphate extraction using an ion-exchange resin. However, sulphate extraction by ion-exchange is not feasible for water samples that contain total sulphate loads of over about 1500 mg. Our paper presents an approach for the preparation of water samples with sulphate loads of up to 6000 mg based on BaSO4 precipitation directly from the sample. The key challenge of this approach is the co-precipitation of interfering natural radionuclides (226Ra, short-lived progeny of 222Rn, 210Pb + progeny, 32/33P), which complicates LSC measurement of 35S. Two options are discussed to allow either pre-precipitating the unwanted radionuclides before, or keeping them in solution during Ba35SO4 precipitation. |
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| DOI: | doi:10.1016/j.jenvrad.2024.107553 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
kostenfrei: Volltext: https://doi.org/10.1016/j.jenvrad.2024.107553 |
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| | kostenfrei: Volltext: https://www.sciencedirect.com/science/article/pii/S0265931X24001851 |
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| | DOI: https://doi.org/10.1016/j.jenvrad.2024.107553 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | Groundwater tracing |
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| | LSC |
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| | Radio-sulphur |
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| | S |
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| | Sample preparation |
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| | Sulphate-rich water samples |
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| K10plus-PPN: | 1921425369 |
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| Verknüpfungen: | → Zeitschrift |
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Radio-sulphur as groundwater residence time tracer / Schubert, Michael [VerfasserIn]; December 2024 (Online-Ressource)
