Výsledky vyhledávání - "Melody Maloubier"

The speciation of protactinium since its discovery: a nightmare or a path of resilience

Autor: Claire Le Naour, Melody Maloubier, Jean Aupiais

Publikováno v: Radiochimica Acta. 110:481-493

This review concerns the speciation of protactinium in aqueous solution under its both oxidation states +IV and +V. Emphasis is placed on experimental data obtained at trace level but also in macroscopic amount leading to the determination of thermod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f6a707eb702e544dfed214c31a80609
https://doi.org/10.1515/ract-2021-1126

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Impact of Natural Organic Matter on Plutonium Vadose Zone Migration from an NH4Pu(V)O2CO3(s) Source

Autor: Hilary P. Emerson, Philip M. Almond, Daniel I. Kaplan, Melody Maloubier, Kathryn M. Peruski, Annie B. Kersting, Brian A. Powell, Mavrik Zavarin

Publikováno v: Environmental Science and Technology
Environmental Science and Technology, American Chemical Society, 2020, 54 (5), pp.2688-2697. ⟨10.1021/acs.est.9b05651⟩

We investigated the influence of natural organic matter (NOM) on the behavior of Pu(V) in the vadose zone through a combination of the field lysimeter and laboratory studies. Well-defined solid sources of NH4Pu(V)O2CO3(s) were placed in two 5-L lysim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f204f7ed6ee2e0cd5ac20510c8c4a9f6
https://doi.org/10.1021/acs.est.9b05651

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Transformation of Ferrihydrite to Goethite and the Fate of Plutonium

Autor: Mavrik Zavarin, Enrica Balboni, Melody Maloubier, Annie B. Kersting, Corwin H. Booth, Tian T. Li, Liane M. Moreau, Kurt F. Smith

Publikováno v: ACS Earth and Space Chemistry
ACS Earth and Space Chemistry, ACS, 2020, 4 (11), pp.1993-2006. ⟨10.1021/acsearthspacechem.0c00195⟩

Understanding the interactions between plutonium and iron (oxy)hydroxide minerals is necessary to gain a predictive understanding of plutonium environmental mobility and to evaluate long-term perfo...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcdd5382a8d62e9427b9787c9d2646f6
https://hal.archives-ouvertes.fr/hal-03431436

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Impact of Natural Organic Matter on Plutonium Vadose Zone Migration from an NH

Autor: Melody, Maloubier, Hilary, Emerson, Kathryn, Peruski, Annie B, Kersting, Mavrik, Zavarin, Philip M, Almond, Daniel I, Kaplan, Brian A, Powell

Publikováno v: Environmental sciencetechnology. 54(5)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::70b420d81dea329f96a51f78c4be6dae
https://pubmed.ncbi.nlm.nih.gov/31942795

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Mobility of Aqueous and Colloidal Neptunium Species in Field Lysimeter Experiments

Autor: Melody Maloubier, Kathryn M. Peruski, Philip M. Almond, Brian A. Powell, Daniel I. Kaplan

Publikováno v: Environmental sciencetechnology. 52(4)

Due to its radiotoxicity, long half-life, and potentially high environmental mobility, neptunium transport is of paramount importance for risk assessment and safety. Environmental transport of neptunium through field lysimeters at the Savannah River

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fc3d00bab85f8d804790424b8ce6194
https://pubmed.ncbi.nlm.nih.gov/29363312

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Radionuclide field lysimeter experiment (RadFLEx): geochemical and hydrological data for SRS performance assessments

Autor: K. Dixon, Brian A. Powell, Dawn Montgomery, Kimberly A. Roberts, Kathryn M. Peruski, Nicole E. Martinez, Daniel I. Kaplan, M. Witmer, Timothy A. DeVol, Melody Maloubier, K. Barber, B. Erdmann

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::563bb4a17307bb23f81d41a904991ba5
https://doi.org/10.2172/1418133

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How Do Radionuclides Accumulate in Marine Organisms? A Case Study of Europium with Aplysina cavernicola

Autor: Hervé Michel, Marguerite Monfort, Joseph I. Pacold, François Oberhaensli, Christophe Moulin, Stefan G. Minasian, David K. Shuh, Christophe Den Auwer, Melody Maloubier, Yasmine Bottein, Pier-Lorenzo Solari

Publikováno v: Environmental sciencetechnology. 50(19)

In the ocean, complex interactions between natural and anthropogenic radionuclides, seawater, and diverse marine biota provide a unique window through which to examine ecosystem and trophic transfer mechanisms in cases of accidental dissemination. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1097f8bfa7f5f547a516cf297259d7d8
https://pubmed.ncbi.nlm.nih.gov/27588898

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Speciation of americium in seawater and accumulation in the marine sponge Aplysina cavernicola

Autor: Christophe Den Auwer, Marie-Aude Tribalat, Hervé Michel, Philippe Moisy, Olivier P. Thomas, Marguerite Monfort, Pier Lorenzo Solari, Marie Yasmine Dechraoui Bottein, Melody Maloubier, François Oberhaensli, Christophe Moulin

Publikováno v: Dalton transactions (Cambridge, England : 2003). 44(47)

The fate of radionuclides in the environment is a cause of great concern for modern society, seen especially in 2011 after the Fukushima accident. Among the environmental compartments, seawater covers most of the earth's surface and may be directly o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4f563c3ba975f8081554ca3c054a398
https://pubmed.ncbi.nlm.nih.gov/26556307

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XAS and TRLIF spectroscopy of uranium and neptunium in seawater

Autor: Pier Lorenzo Solari, Melody Maloubier, Christophe Moulin, Philippe Moisy, Marguerite Monfort, Christophe Den Auwer

Publikováno v: Dalton transactions (Cambridge, England : 2003). 44(12)

Seawater contains radionuclides at environmental levels; some are naturally present and others come from anthropogenic nuclear activity. In this report, the molecular speciation in seawater of uranium(VI) and neptunium(V) at a concentration of 5 × 1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a8182da716c63c7b8350984336551e8
https://pubmed.ncbi.nlm.nih.gov/25689216

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Development of an analysis method of minor uranium isotope ratio measurements using electron multipliers in Thermal Ionization Mass Spectrometry

Autor: Vincent Dalier, Alexandre Quemet, Alexandre Ruas, Melody Maloubier

Publikováno v: International Journal of Mass Spectrometry
International Journal of Mass Spectrometry, Elsevier, 2014, 374, pp.26-32. ⟨10.1016/j.ijms.2014.10.008⟩
International Journal of Mass Spectrometry, 2014, 374, pp.26-32. ⟨10.1016/j.ijms.2014.10.008⟩

International audience; A simple analytical procedure was developed to measure with high accuracy the isotope ratio of minor isotope of natural uranium present in small quantities using a thermal ionization mass spectrometer (TIMS). The reduction of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d92a992eb35c6b35dc527462177ddb1a
https://hal-cea.archives-ouvertes.fr/cea-03192840/document

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